Ignorance-Knowledge: 105

Mahayana means the Great Vehicle, whose purpose is to attain awakening collectively for the liberation of all beings. The development of the Yogachara perspective was accomplished in the fourth to fifth centuries by the great masters Asanga and Vasubandhu. Based on the teachings of Maitreya-natha, they established the complete framework of this philosophy in texts such as the "Yogacharabhumi Shastra," "Vijnanamatra-siddhi," and "Trisvabhava-nirdesa."

The fundamental thesis of Yogachara is—"nothing exists apart from consciousness"—what appears as external objects is actually a projection of consciousness itself. In his Vijnaptimatrata-siddhi, Vasubandhu states—"Bahyavastu-nirakritir-apekshaya vijnanamatra-mavashistam"—meaning, external objects have no independent existence; only knowledge or consciousness remains. The title of the text means—"Establishing the doctrine that consciousness alone is real" or "Proof that perception/consciousness alone is true." Everything we see or experience outside is merely a reflection of mind or mind-form (jnanakara)—manifestations of consciousness itself. This text logically demonstrates that what appears as object is actually inseparable from consciousness, and external objects beyond consciousness are non-existent. Thus, in Yogachara philosophy there is no distinction between reality and consciousness; seeing and knowing, the seen and the seer—all these are one indivisible process.

To explain this theory, Yogachara constructs an extraordinary framework of psychological analysis known as the Eightfold Consciousness theory (Ashtavijnana). Here it is said that consciousness is divided into eight levels—the five sense-consciousnesses (eye, ear, nose, tongue, skin), the sixth mental consciousness (thought or concept), the seventh manas (ego, the seat of "I"-consciousness), and the eighth alaya-consciousness (Alaya-vijnana), which stores all experience in seed form in the depths (alaya). The concept of alaya-consciousness is Yogachara's most fundamental contribution—it is a kind of "storehouse consciousness," where the impressions (samskaras) of past actions and experiences remain stored as seeds (bija). These seeds become the source of future births, thoughts, and perceptions, creating new experiences anew. Thus the unbroken cyclical flow of world and individual—samsara—continues.

Alaya-Consciousness (Alaya-Vijnana) or "store-consciousness" is one of the deepest theories of Buddhist Yogachara philosophy, which explains—how the continuity of all human experience, karmic results, and streams of thought persists, even though there is no permanent self (Atman). It is such a level of consciousness that exists beyond visible mind or sense-consciousness, yet is the foundation of them all. The word "Alaya" means refuge or storehouse, and "Vijnana" means consciousness or knowledge; thus Alaya-Vijnana is that deepest consciousness where all mental activities, experiences, and karmic results remain stored in seed form.

This concept was first developed in detail by the two great masters of Yogachara philosophy—Asanga and Vasubandhu. They say that the human mind is not singular, but multi-layered. Our conscious mind or sense-consciousness is only the surface; beneath it lies a deep mental stratum called alaya-consciousness, which stores every thought, feeling, desire, and karmic result, and manifests them again under appropriate circumstances.

According to Yogachara, there are eight levels of consciousness (Ashta Vijnana)—eye-consciousness (visual consciousness), ear-consciousness (auditory consciousness), nose-consciousness (olfactory consciousness), tongue-consciousness (taste consciousness), body-consciousness (tactile consciousness), mind-consciousness (thought or concept), manas (ego or self-conception), and finally alaya-consciousness (store consciousness). This alaya-consciousness is the deepest and most fundamental level—it is the basis of all other consciousnesses, like a vast ocean upon which the waves of sense-consciousness rise.

The key to understanding alaya-consciousness is the "seed theory" (Bija-vada). Every mental activity or experience creates a seed (Bija), which is stored in alaya-consciousness. These seeds never perish; they remain dormant in the depths of the unconscious and sprout again under appropriate causal conditions. For example, thoughts of anger create seeds of anger, thoughts of compassion create seeds of compassion. Thus our present habits, tendencies, and personality are actually the result of countless past seeds—which have accumulated in the storehouse of alaya-consciousness.

Buddhist non-self doctrine (Anatma-vada) states that there is no permanent self. But if there is no self, how does the continuity of karma remain? Yogacharins answer this way—though there is no self, there is alaya-consciousness, which is an unbroken mental stream (Citta-santana). This is not any fixed entity, but a continuous process that carries the karmic results of each life into the next. Thus alaya-consciousness explains the principle of rebirth, maintaining karmic continuity without a self.

Citta-santana is a profound theory of Buddhist philosophy through which "mind" or "consciousness" is understood not as any permanent entity, but as an unbroken flow. "Citta" means mind or consciousness, and "Santana" means continuity, flow, or stream. That is, citta-santana signifies—consciousness is not any fixed thing, it is an ever-flowing stream where new consciousness arises every moment, but that new moment is formed by the influence of the previous moment.

This theory occupies the center of Buddhist psychology. Buddha had denied the permanent existence of self (Atman); but the question arose—if there is no self, how are karmic results (Karma) and rebirth possible? Yogachara and other Buddhist schools answered this question through "citta-santana." They say there is no self, but there is a stream of consciousness that carries karmic results from one birth to another.

To understand this consciousness-stream, one must first understand the Buddhist theory of "momentariness" (Kshanikavada). According to Buddhist philosophy, every thought, feeling, or awareness lasts only a single moment; it arises, blazes up, then dissolves. But dissolution does not mean emptiness—the consciousness of the next moment is born under the influence of the previous moment, like an incessant wave-flow. Thus the moments of consciousness connect to create a continuity of "mind"—which is actually not any permanent entity, but a sequential process.

This stream of consciousness is called citta-santana. It is not a self, but gives the sense of continuity like a self. Just as the water of a river is new every moment, yet we consider the river one entity; similarly, though consciousness constantly changes, we experience it as one "I." This "I"-sense is actually the result of consciousness's continuity, not of any fixed self.

In Yogachara philosophy, citta-santana is analyzed even more subtly. They say that in the depths of this continuity of consciousness lies alaya-consciousness (Alaya-vijnana)—which is a kind of warehouse or repository of consciousness. The seeds of all actions, experiences, and thoughts accumulate in this alaya-consciousness. Citta-santana is the flow of these seeds, and alaya-consciousness is their refuge. Thus it is explained—past experience shapes the present, and present action sows seeds for the future; altogether an unceasing stream of consciousness flows on.

The theory of citta-santana connects with modern psychological thought in deep harmony, as if an identical river of consciousness flowing between two different eras and cultures. The term "citta-santana" in Buddhist philosophy means exactly "continuity of mind" or "stream of consciousness"—it states that mind or consciousness is not any fixed or unchanging entity, but an unbroken flow that is being born every moment, decaying, and becoming the foundation of subsequent consciousness. Thus the moments of consciousness connect with each other to form a mental continuity—which we mistakenly think of as "I." Here there is no permanent self, yet the continuity of experience persists, just as though the water of a river is new every moment, we see the river as one unbroken entity.

In the nineteenth century, William James in Western psychology said exactly this same thing in different language. Analyzing the nature of mind or consciousness, he declared—"Consciousness is a stream, not a thing." In his words, "Consciousness does not appear to itself chopped up in bits; it is nothing jointed; it flows." That is, consciousness is not like any fixed object that is divided into parts; it is a constant flow, a moving stream. He calls this flow "Stream of Consciousness," meaning—the human mind is a continuous stream of flowing experience, where thought, feeling, memory, and will interweave to create a living conscious current.

The Buddhist citta-santana theory and James's "Stream of Consciousness" point in the same direction—consciousness is not any solid entity, but a living process renewed moment by moment. Both acknowledge that our "I"-sense or personality is not any fixed center, but a reflection of continuous awareness. For this reason, James's psychological observation can be called a modern scientific form of ancient Buddhist theory.

This thought has been analyzed at even deeper levels by Sigmund Freud and Carl Gustav Jung. They discovered another vast stratum beneath consciousness, which they named the "Unconscious." Freud divided the human mental structure into three parts—Conscious, Subconscious, and Unconscious. In this unconscious level, according to him, lurk repressed desires, memories, urges, and instincts that silently control our behavior, thoughts, and emotions. We are not consciously aware of them, yet they determine the course of our lives.

In Freudian psychology, human consciousness emerges as a three-tiered structure—conscious, subconscious (or preconscious), and unconscious. This tripartite division is actually a profound attempt to comprehend the multidimensional nature of human mental life. Freud believed that the human mind is not any linear, transparent, and logic-dependent process; rather it is a complex stratified entity, where each stratum influences other strata through its own dynamics and forces.

The conscious level (conscious mind) is that part of the mind which is the field of our waking experience—here our thoughts, feelings, decisions, perceptions, and sensations are actively operational. When we think about some event, do some work, or engage in conversation, our mental activities are accomplished at this conscious level. But this level is actually like the peak of an iceberg—visible, yet small; beneath it lie hidden those invisible strata that indirectly control our thoughts and behavior.

The first part of this lower-level field is the subconscious or preconscious. Here remain memories, experiences, and concepts that have temporarily moved away from conscious mind, but are not completely extinct. Through some hint, connection, or willpower, these can return again to conscious mind. For example, when we cannot remember someone's name momentarily but suddenly recall it after some time, that is a manifestation of subconscious activity. This level acts as a bridge between conscious and unconscious, where mental information can move freely.