Acharya Prashant explains that the world is in a state of constant flux, where nothing remains stable even for a fraction of a second. He argues that what we perceive as solid objects are merely illusions because they are constantly changing. Since objects are transitory, the subject—the 'I' that perceives them—is also an illusion. Both subject and object are two ends of the same duality, and when one is seen as unreal, the other must also be recognized as such. This realization leads to a state of vast nothingness, which he describes as the highest positive reality and the absolute truth.