You don't even necessarily need lucid dreaming to explain these experiences. Practices clearly intended to altar mental & emotional state are endemic to all rel

You don't even necessarily need lucid dreaming to explain these experiences. Practices clearly intended to altar mental & emotional state are endemic to all religions. Combined fasting, sleep deprivation, and focused attention are enough to induce hallucinatory experiences for a lot of people, specifically if that experience is sought out over time. Even in christianity this was widespread until relatively recently in the form of pre-feast fasting & vigil, and is still practiced by monastics. Lucid dreaming may be part of these traditions I don't really know. Religious experience is so broad and ancient it's hard to rule things out. But there are a lot of descriptions of visions, and while it's common for them not to distinguish between "visions" and "dreams" per se I've never read a description of something that sounds like lucid dreaming in a pre-modern source.