.The concept of "soul pool" sounds very similar to the idea of "group soul" that I read in Max Heindel's "Rosicrucian Cosmo Concept" book... As I can remember, Madam Blavatsky talks about similar concepts too...
I think that once the soul potential (for those who have it) begins to actualize in what we call 'time' then a process is set in motion
where even after death this process still continues and goes even beyond this soul pool that is mentioned into another state where some of its outer non essential elements may dissolve but its essential "substance" has the coherence to continue beyond this soul pool and does not dissolve fully so as to continue to develop (in other words even death does not stop this process) and it continues to develop (after reviewing it's previous life and so on) thru continued incarnations with ongoing possibilities of it's actualizations in 'time'. I often get the impression (and I certainly could be wrong) that each of our lives in this life are a 'fragment' of something greater and these fragments kind of unite thru repeated incarnations to continue the soul development and it's seating in 'actual time' along with the growth of self awareness.
I don't see time as something 'real' in itself, but rather as a sequence of linear perceptions that our consciousness flows thru and recognizes which we call 'time.' So what we call 'real time' is, imo, nothing more then a mathematical abstraction based on a linear sequence of perceptions (that our greater consciousness perceives or sees itself reflected in) of perhaps natural physical cycles but it's real nature is a limited condition of our greater consciousness perceiving shadows of some kind of higher space or 'solid' that exists in a more real sense (so to speak). So I think 'time' has everything to do with the state of our limited consciousness and really nothing to do with a reality within itself that we call time.