Life is perhaps nothing more than energy forms. It is said that mathematicians (yes and not some religious priest or biologist or anthropologist) who calculated and speculated the probably presence of different dimensions in life. If these different dimensions is what some refer to as the different realm of life.

If such speculations are true then humans are probably a result of our 4 dimensional energy form trapped in a 3 dimensional shell. Possible? Maybe. Some said we cannot look across to a higher dimension (we can look down though, hence our ability to see 1D and 2D stuffs) and situations where people see spirits are the result of an isolated incident of dimensional cross-over. I don't know how true is this man.

Perhaps we all crossed over from the 2nd dimension and came here with a purpose. Perhaps death meant a liberation... ...