Yes, it is "plain" in a sense, also full, whole and complete. What else do you want to know? You already know who your are, which means youre Self realized, the rest is Mithya (apparent). Sure, there are the ontological orders of reality, Isvara (god), vasanas (past impressions), gunas ( the 3 energies) and how they work together and all that jazz, but if you don't desire to know this knowledge, then so be it! If you do, then study Vedanta or whatever else.I haven't even had one tiny opening or insight into the nature of anything......other than who I am and that is mundane and plain as a piece of paper.
There's no need for spiritual "experiences" to be enlightened, it's Self knowledge that removes ignorance of who you really are. I've had spiritual experiences and when they were over ....5 minutes later, I was still as ignorant as ever.
In Vedanta, after Self realization comes Self actualization (the assimilation of Self knowledge to all areas of one's life).It's been 5 years since I "looked at myself" and life simply gets richer and more full filling each year. The changes are slow but steady and the first several years were quite difficult as my body and mind resisted the transition.
You know how to play your "apparent" role as Onceler, but stand with conviction in your true identity as the Self. Therefore, as I said before, pain and pleasure persist, but you no longer suffer.
Self actualization can take years..or not, it depends. Once fully actualized (not perfect, mind you) then you have Moksha (liberation).
If you still don't think this applies to you, then either you just don't see it or maybe it really doesnt apply, either way, as long as suffering has ended it's all good.
As far as the "far out", bells and whistles enlightenment experiences...who cares? For reasons I already stated.... and for those who didn't go back to being ignorant, like Tolle, he still had his time "assimilating" the knowledge gained during the experience . About 2 years on a park bench and admittedly reading many spiritual texts.
Ok, I'm done!