[y not]

But even when the gandhabba is successful in getting into a zygote, sometimes it leaves that zygote after maybe several weeks or within a couple of months. Barring, of course, the mother having an accident of some sort – a fall, for instance – it may well be that the gandhabba ‘found out’ that there was or would be something defective in the development of that zygote, well beyond its power to ‘rectify’, so it departs. For I cannot see how the gandhabba could have made a ‘wrong choice’ of zygote in the first place.