Vaisheshika, one of the six schools of classical Indian philosophy, is known for its atomistic realism about the nature of reality. This school of thought believes that the universe is made up of discrete, indivisible particles called atoms, which combine to form all objects and beings. In this view, the concept of soul or self is also seen through the lens of atomism.

According to Vaisheshika, the soul or self is a distinct, eternal, and imperishable entity that exists within each individual. It is considered to be the essence of a person and is responsible for their consciousness, emotions, and actions. However, unlike other schools of thought, Vaisheshika does not see the soul as a separate entity from the body. Instead, it is seen as a subtle material substance that is intricately connected to the physical body.

The Vaisheshika school of thought also believes that the soul is composed of an infinite number of atoms, which are arranged in a specific configuration. This configuration is unique to each individual and is responsible for their individuality and personality. This concept is similar to the modern understanding of DNA, which carries the genetic information that makes each person unique.

Furthermore, Vaisheshika holds that the soul is eternal and imperishable, and it continues to exist even after the death of the physical body. This belief is rooted in the idea that atoms, being indestructible, cannot be destroyed, but can only change form. Therefore, the soul, being made up of atoms, is also immortal and undergoes a cycle of birth and rebirth, known as samsara.

However, Vaisheshika's atomistic view of the soul does not diminish the importance of spiritual practices and moral conduct. In fact, it emphasizes the importance of living a virtuous life in order to attain a better rebirth and ultimately, liberation from the cycle of samsara.

In conclusion, Vaisheshika's atomistic realism views the concept of soul or self as a subtle material substance composed of an infinite number of atoms. It sees the soul as an eternal and imperishable entity that is intricately connected to the physical body and undergoes a cycle of birth and rebirth. This perspective offers a unique understanding of the soul that is deeply intertwined with the fundamental principles of atomism.