I was just remembering the end of Papaji’s interview with David Godman, and one of the things Papaji says is that his highest transmission of teaching is something he has never given to anyone. When asked why not, he says it is because nearly all the people he encounters are still at heart egotistical and selfish. That their spiritual search is actually self-serving.
He also says that this higher transmission is something of the heart, and that if you are at your core not worthy of it then all you will hear is speech to the mind, and a mind understanding of it. That this mind understanding is something that the western mind could appreciate, but that it is not the purpose of the teaching.
It seems to me this might be the case with some Buddhist teachings as well. That one should look really carefully at whether the spiritual search is to serve yourself, so that YOU can evolve or know the truth, or whether you really feel as if you could serve the world with your enlightenment. Whether you really have abandoned serving the self.