The information in these sites may help solve some or our questions. I do know from experience that there is no such thing as time within time because even this is another containment field which is limiting the principal of zero and how it relates to the originator which generates time for us who live in it. Therefor these special phenomena such as whiteholes or blackholes only exist as a tool for our benefit to be used as portals for time jumps and without the use of any kind of mechanical tool. If our level of conscience ever reaches the point where matter can be controlled by the mind then it should be possible to metamorphosize in to a kind of a spirit being without leaving a trace of material particles behind where we leave from. I think this is what happened to some of the prophets when they ascended in to the heavens or heaven and some did leave their bodies behind and may have traveled as conscience and knowledge data particles only in a form of invisible energy balls.

http://kabbalah.com/kabbalah/
http://homepages.tesco.net/~f.edis/

Best Regards
Atri