The nature of death, to let go

[jafar]

Why do you want to really care about something outside the existence of your current density ?
Of course it is interesting to hear and learn about it, but it is something that have to be mastered in the future and not in the now.

Jim's question hits the point and Ra's answer is indeed excellent.

Because "you" exist in multiple densities simultaneously, through many identities.
Such is among the core message conveyed by Siddharta, Ra, Lao Tse, and many Yogi masters.

Jim's question uses the word "Must" where "eventually shall" will be more appropriate. 
Any form of identities eventually shall be obliterated.
And he think that "mystic traditions" advised "ignoring the material world" where it should be "no attachment to any thing".

The background for such advise is that the things that does not change is the change itself.
Any 'thing' in this VR world is continuously changing and has it's own 'cycle', formation and deformation.
Once this is realized, an event such as 'death' will not be feared, death (deformation) will be viewed as equal to it's opposite, birth (formation). 
Logging out from this VR world will be viewed as equal to it's opposite, logging in.