When whole of humanity start to live fully then this earth can become heaven

What is "ME"? Is it a collection of atoms or is it a concept in my mind? How do I know that ''ME'' exists to begin with? The only way I can perceive things, is via my mind. My mind is the ultimate detector of the phenomena called ''Me''. If nobody would have ever explained to me that this [my being] heap of Atoms is "Me", "ME" would not have existed for me.