Acharya Prashant addresses the existential question of why we are here by first challenging the notion of who exactly has 'arrived' on Earth. He explains that the physical body is composed of elements like soil, food, and air that were already present on the planet; therefore, the body has not come from anywhere else but has always been here in different forms. He asserts that if one identifies solely with the body or the mind, there is nothing original or 'new' about them, as even names, thoughts, and personalities are external impositions from society, parents, and history.