Collective or no?

This is a bit of a strange one, however i was thinking that because energy cannot be destroyed and it remains simply changed into another form, would it be possible if other dimensions/realities existed for your energy to be pooled together. Into a sort of amalgamation of all your possible beings/selfs. This is of course depending on whether or not your energy can exist in all possible realities and whether or not it merges or remains separate and transforms into other states of energy.