Incarnations
I am a bit surprised that there is no thread on as widely accepted and talked topic as reincarnation, which seems to be a basic assumption for OBE related matters i.e. that soul or spirit (the label is not important of course) is incarnated into a physical body for a span of life of a particular person, then leaves the physical body after certain time, and may re-incarnate again. The subject seems to be covered with a dense cloak of mystery, though. The most essential question about reincarnation on the planet Earth is obviously why does reincarnation exist at all? Most people answer this question rather vaguely, typically that the reincarnation has been established because of the need of a development (typically: soul development), and only or mostly because of that. Does it answer fully the question? Can and how we can be certain about that? Are there other possible reasons?
What do you think?

Answering to this question: how strictly the incarnation system on the Earth is managed, and how strictly the Earth with all of its citizens is managed?
leads to groundbreaking conclusions about the Earth and the Earthy system.
The answer to that question is a key answering many other, related things when we have just this single answer - like:
what is fate, or a plan on the life-time
how the incarnation plan is being managed and how our key decisions (such as a choice of the previously planned life partner) are made in reality
how entities managing the Earth incarnations - keeping in mind that the Earth being the target area for reincarnation system - choose certain events for a particular life-time, i.e. what criteria are the basis for their decisions, and in what degree, if any, we participate in our own life-time plans for incarnations
among many, many others.
IMO there is a simple, even purely logical, way to answer this key question, there are of course multiple ways, further more one (the metaphysical researcher) may combine more than one way to answering this very essential question, and it may lead to starting making conclusions on the observations of how our Earthy system in fact works - which are frequently, as I noticed, omitted by people who are interested in the subject.