Yes it is a strange phenomenon, I was also reading about Hypnagogic hallucinations, that can involve visual, auditory, or physical sensations, and can be quite intense and realistic. Although harmless and not related to any kind of mental health, as they only occur during the sleep process, it may explain my experience I had last night drifting of to sleep, which I posted in dreams section. But like I also stated there the phenomenon could actually be understood if we look at it from a psychic intuitive level, like in this link -
https://youtu.be/_vcPy9UBEVM?feature=shared
https://serendipstudio.org/exchange/...ther-realities