You are right, my world is smaller than yours. I have a reason to stay in this small world, a reason good enough to me.
I choose this world because in it I'm much easier to give and receive.
Your world is large indeed, beautiful maybe, but never warm to me, and I see no sane reason for me to borrow your life style and pretend it is mine.
Go, then, my friend. I wish you well in your world, just as I want to have a warm and happy life in my small world. I believe we both search for the same thing, just in different path.
