No mythic origin or creation narrative for Phi Am is provided in the cited source. The available material treats Phi Am as the vernacular label used within Thai popular belief to account for a particular sleep-state experience rather than describing a specific cosmogonic origin.
The cited source does not provide a consistent or detailed physical description of Phi Am. Accounts referenced only note that sufferers may experience hallucinations during an episode, but do not fix a canonical form for the spirit in the provided material.
In the provided material Phi Am is associated with producing a state in which a person is conscious but unable to move during transitions into or out of sleep, accompanied by hallucinations and a felt sense of an oppressive presence. Episodes are described as generally lasting no more than a few minutes and may recur multiple times or occur as a single episode. The source frames these effects both as a physiological sleep-state and as culturally interpreted agency of a spirit pressing on the sleeper.
Community Record
- [1]Sleep paralysis. "Sleep paralysis is a state, during waking up or falling asleep, in which a person is conscious but in a complete state of paralysis." "During an episode, the person may hallucinate, which often results in fear." "Episodes generally last no more than a few minutes. It can recur multiple times or occur as a single episode." — Wikipedia, Sleep paralysiswiki