Thats a fairly interesting concept since energy is never created nor destroyed, it merely changes forms. But unless your meaning kind of like spiritual energy, you know stuff like your soul, you won't have any energy left to give back to the universe. Because all the energy you have stored up in your body is exhausted when you're cremated and the only energy your ashes will have left is potential energy.
If this is nowhere near what your talking about then don't mind me haha.
Good to see your going out in style by the way
