What ever your LSD experiences are, they are not religious. I taught comparative religions for 30 years and at no time would we confuse a person’s acid trip for any of the World’s religions, including those that use mind altering practices or substances. Religions at least have some of the following in common: A respect for spirits, ancestors, gods, and demons; Core myths; Established rituals; A belief in life after death; A code of conduct or moral order; And followers.
Spiritual maybe, but I doubt that too.
How about poetic, since more than one poet has expressed similar sentiments even though no drugs were involved?
Mostly, I wonder why you need to categorize acid trips in these terms at all. You became pleasantly high on a drug and had what psychologists would refer to as a euphoric oceanic experience. So have I, but I never felt the need to label it as anything but that. People justifiably smirk when one says they got high and talked to god because, well, of course…
For more on the religious v spiritual distinction: