It is neither yours, nor mine. It is undivded. It is beyond the conception of Time and Space. It is fixed and immutable. It is outside and inside of body, yet neither. The interpretation of many people that 'atma leaves the body' or experiments over 'soul cracking the windows' is like a child's understanding of the highest science. How can that which is beyond Time and Space, that which is fixed and undivided; how can that move or crack anything? Neither can fire burn it, nor wind dry it, nor water can make it wet, nor can it be cut by weapons. It is not a 'ghost'. It is a reality. Many interpretations like 'Atma leaving the body' is because of incorrect understanding of the basic foundations of Indian knowledge which includes pillars like dharm, karm, Purush, Prakriti, Brahman, etc. Do we learn Sanskrit by the grammar used in French? Similarly, to understand Indian science, pure Indian framework needs to be embraced! One must read scriptures to see the usage of the terms himself.