I was unfamiliar with the expression "Perennial Philosophy," so I looked it up on Wikipedia. Here's their essential definition:
Yes, my friend was right. The Simple Explanation is all about identifying the universal truth embedded underneath ages of confusing memetic overlays.
And what is the basic truth that all traditions share when you strip away their superfluous memes?
- There is a Divine Reality underpinning everything; without This, no thing and no one would exist.
- egoic "me" is selfish, competitive, single-minded, short-sighted, meme-bound
- salvation, enlightenment, Self-realization, Buddhahood
- Unification is only possible through denial of the earthly self and identification with divine Reality.