Acharya Prashant addresses the fundamental question of whether God exists by shifting the focus from the concept of 'God' to the meaning of 'existence' itself. He explains that when we say something 'is', we are defining its existence based on our senses and mind. For an object to exist, it must be perceivable by the senses, which are governed by the mind, which in turn is controlled by the ego. Therefore, anything we claim 'exists' is essentially a servant to our senses and ego. If we define God as an object that 'is', we inadvertently place God below our own senses and ego, which contradicts the definition of God as the highest reality.