In Yogācāra philosophy, the concept of self is viewed as a construct of the mind. This means that the self, or the idea of a separate, individual identity, is not an inherent or permanent aspect of reality, but rather a projection of consciousness. This view is often referred to as "mind-only" or "consciousness-only" because it suggests that the mind is the primary source of all phenomena.

According to Yogācāra, the self is not a fixed entity, but rather a constantly changing and evolving concept. This is because the mind is constantly creating and projecting new thoughts, perceptions, and experiences. These mental projections are influenced by our past experiences, beliefs, and conditioning, and they shape our understanding of ourselves and the world around us.

One of the key concepts in Yogācāra philosophy is the idea of the "storehouse consciousness" or ālaya-vijñāna. This is the deepest level of consciousness, which contains all of our past experiences, memories, and karmic imprints. It is from this storehouse that our individual sense of self arises, as we interpret and make sense of our experiences through the lens of our personal history.

However, Yogācāra also emphasizes the idea of "dependent origination," which states that all phenomena, including the self, are interdependent and arise in relation to other factors. This means that the self is not an independent entity, but rather a product of various causes and conditions. Therefore, the self is not a solid or permanent entity, but rather a constantly changing and evolving concept.

Furthermore, Yogācāra also teaches that the self is ultimately empty of inherent existence. This means that the self, like all phenomena, lacks a fixed, independent essence. Instead, it is a product of our perceptions and projections, and is therefore ultimately empty of any inherent, independent existence.

In conclusion, Yogācāra views the concept of self as a construct of the mind, constantly changing and evolving based on our perceptions and projections. It is not an inherent or permanent aspect of reality, but rather a product of our past experiences, conditioning, and interdependent relationships. By understanding the true nature of the self, Yogācāra teaches that we can overcome suffering and achieve ultimate liberation.