Acharya Prashant explains that the realization of Truth leads to the destruction of untruth, comparing Truth to light and the human condition to living in darkness. Citing a composition by Rumi, he notes that a veil remains over the Truth because the human mind cannot withstand the intensity of the unveiled light. To define Truth, he suggests identifying what it is not, starting with the mind. The mind functions as a closed system involving both projection and experience, similar to a cinema hall where the mind acts as both the projector and the screen. He argues that the world appears real only because the brain is programmed to perceive it in a specific manner, such as within three dimensions. Space and time are not external entities but are internal constructs of the mind. Using the analogy of a number whose value changes based on the mathematical base of a system, he illustrates that perception is dependent on the observer's configuration. He points out that animals and other beings perceive different realities because their sensory configurations differ from humans. Ultimately, he concludes that because the brain constructs the world and everything perceived is mental, these perceptions cannot be the Truth.