The Buddha was talking with Uttara, a young pupil of the bhramin Parasariya:
-Uttara, does Parasariya teach you how to develop your faculties?
-Yes, Master Gotama, he does teach us how to develop our faculties
-How does he do...
There is this constant reference to "white" in this forum. At one instance there was a dualistice description of "so and so" vs "white", "white" being the better of the two. Duality makes this mistake of purity. That one thing is purest than another. That is a form of materialism. Though spiritual materialism.
Yet white reminds me of sky gazing done in Tibetan Bon. Or Ashe in Tibetan Shambhala.
Compared to these, white, as described around here is the Primordial Mind. Primordial Mind is the clear reflection of reality without any additive. While our conceptual mind may come online, we can refer to Primordial Mind to learn what conditioning we are engaged in. Yet dive all the way and it does not matter because the conditioning simply falls away. Yet, still if some gift of insight is made then the possibility of conditioning re arising, decreases.