Thanks! To clarify, I posted it in the EA forum due to EA's interest in science policy and infrastructure. I felt it might serve to suggest it might be worth prioritizing higher or looking into further.
I don't believe ancient spirituality (depending on how it's defined) is scientific due to wording in the area, but I do believe most concepts in the area seem to be true or have truth to them. There seems to be misinterpretation of what various terms and motifs reference, though.
A good example is a Reddit post titled: TIL Not long after Julius Caesar was assassinated, a comet shone for seven successive days. This signified Julius Caesar's ascension to Godhood, and propaganda for Caesar's nephew. The comet was described as: "To make that soul a star that burns forever, Above the Forum and the gates of Rome." It seems an awful lot like images that appear when "Ida, Pingala, Sushumna" is image searched with seven referencing something with chakras, the comet referencing spirit, the soul referencing the psyche, gates referencing nadis, Godhood referencing Buddhahood or something with enlightenment, and death referencing ego death.
As for alternative medicine, to my surprise, when I looked into it, much or most of it is scientific. It's just poorly branded, and there appears to be conflict of interest. Some good examples are functional medicine, holistic medicine, and naturopathic medicine. The fields use engineering principles such as whole systems thinking and root cause analysis and tend to use natural products more but are not opposed to using synthetic products if they work best.
Dr. Jeffrey Bland, Dr. Frank Lipman, the Institute for Functional Medicine, and Dr. Will Cole seem like good sources on the subject. It's worth noting Wikipedia's medical pages seem to have strong bias.
Dr. Jeffrey Bland provides a good explanation. https://www.youtube.com/results?search_query=dr.+jeffrey+bland The skeptical movement and conflict of interest from certain industries such as the biotech industry and sex industry appear to be at least partially responsible for the replication crisis and appear to have a large or widespread influence or impact in academia and the scientific community.
Some stuff that seems "woo" does seem to be pseudoscientific. I'm not denying that. However, there appears to be bias towards and conflict of interest regarding much of it which has implications for philosophy and many social sciences such as anthropology, political science, medicine, and archeology. Also, I'm not claiming these interpretations are scientific, but there does seem to be a lot of evidence to support them.
I have some more examples:
https://www.ecosia.org/images?q=alchemy
https://www.ecosia.org/images?q=egyptian%20mythology%20brain
https://en.wikipedia.org/wiki/Divine_spark
https://en.wikipedia.org/wiki/Pineal_gland
https://www.sciencedirect.com/science/article/pii/S2005290113002082
https://www.youtube.com/watch?v=q9cTJef4gzE
https://en.wikipedia.org/wiki/Inward_light
https://i.pinimg.com/736x/85/08/0d/85080d85bb8a79251c65dd36d47a6fe6.jpg
To add to these, it's said the eyes are the window to the soul.
There's evidence to suggest the “monster under the bed”, “boogie monster”, “monster in the closet”, and the “monster is just a tree branch” meme are occurrences of sleep paralysis. There's also evidence to suggest the Bloody Mary ritual is related to their third eye and hallucinations.
https://www.ecosia.org/images?q=halo%20crown%20chakra
https://www.ecosia.org/images?q=crown%20chakra%20enlightenment
https://www.reddit.com/r/todayilearned/comments/kg5usd/til_not_long_after_julius_caesar_was_assassinated/
If you look at verses about "God", "God" could possibly refer to the universe (sometimes in a general sense), an enlightened individual or guru, or the holy spirit, the father, and the son, depending on context.
https://commons.m.wikimedia.org/wiki/File:SahajaSubtleSystem.svg#mw-jump-to-license
http://sutrajournal.com/images/2016/jan/alchemy.jpg
https://www.royalartsociety.com/wp-content/uploads/2018/04/aqua-vitae-alchemy.png
https://i.pinimg.com/736x/22/34/9f/22349f8c66132882a15ec4cd5ce178ff.jpg
https://en.wikipedia.org/wiki/Kundalini
https://en.wikipedia.org/wiki/Caduceus
https://i.pinimg.com/originals/b7/1d/45/b71d45dbb63347f0eca868ee4a1df32b.jpg
https://en.wikipedia.org/wiki/Angel
https://en.wikipedia.org/wiki/Harpy
https://en.wikipedia.org/wiki/List_of_cryptids (these seem to be Jungian archetypes which seem to be evolutionary)
It seems like more than a coincidence that Roman deities are referred to as planets, "planets" are involved in astrology and, if I recall correctly, alchemy, and there's a practice in Taoism called the microcosmic orbit.