Wanna know what Buddha reckons? This will blow yer spaceship!
Every moment of mind (feeling, discrimination, aggregates of mental factors, consciousness) is preceded by a previous moment of thought. The process of rebirth is described in Joyful Path of Good Fortune, a commentary to Je Tsongkhapa's work (Buddhists love to qualify themselves with strings of lineages).
Where was we? Ah, yes, fucking. Spirits are EVERYWHERE, more numerous than animals (as Hell beings are even more numerous than hungry ghosts and formless gods being the least numerous, because: Good=reallyfuckinghardtodo). These hungry ghosts, spirits, beings of electromagnetic wavelengths imperceptible to untrained human perception (everyone can "see" ghosts, you just have to LOOK) like to watch people have sex and then, depending on their preference, enter through the woman's mouth or man's into the woman's ovum through him. The trauma of the birth process wipes the data banks clean, well, not entirely, if you can tap into the mainframe you can get a sys log.
I know, I know. It poses A LOT of questions, least of all, ewwww. But, there's some really fucked up shit about humans (I know you smell your finger after that thing you do with it) and I wouldn't put it past 'em.
It also reminded me about the process of IVF and discovering "the spark" needed for fertilization.
All we are is an over-emotional, electrical cucumber.