Jax wrote:"Because Awareness (Rigpa) has no finite essence, and because suchness and deliberate activity are mutually exclusive, and because Awareness is already timelessly and spontaneously present, nothing need be done concerning levels of realization on which to train, spiritual paths to traverse, mandalas to visualize, empowerments to be bestowed, paths to cultivate in meditation, samaya to uphold, enlightened activities to accomplish, and so forth. This is because there is no need to accomplish anew what is already timelessly and spontaneously accomplished. If there were such need, it would be inappropriate to use the conventional designation "spontaneously present and uncompounded." And it would follow that dharmakaya was subject to destruction, because it would be compounded, and this because it would be created by causes and conditions." (practices etc.) Longchenpa, Choying Dzod, A Treasure Trove of Scriptural Transmission, page 120, first paragraph. Padma Publications.
Isn't Longchenpa pointing to the fact that Awareness (rigpa) cannot be attained by training, practice or any efforts of any kind? He says that because Awareness is fully present right now. Its not hidden. He even says in the same text that no "direct introduction" or realization is necessary. Your cognitive presence that is experiencing, is the experience, of the five senses, as well as your thoughts and emotions...is this timelessly present Knowingness, that Norbu call pure "noticing". It's not more present after practice or study or transmission. Its the clear unchanging Awareness that appears as everything. Is it really so hard to notice that the Awareness he is speaking of is your present open and clear awareness just as it is?
"[Q7] How is one to view the meaning of the teaching that ‘there is no attainment of awakening?’
One’s own nature abides as the sky. This means that
There is no reason to transform oneself into the sky.
The mind itself is the sky, the expanse of awakening;
There is no cause of the attainment of awakening.
Without ground or root, the mind itself,
Like the sky, is not [made] pure by cleansing.
Awakening, free of production,
Is without any cause or fruit of awakening whatsoever."
Rdo rje sems dpa’i zhus a Mahayoga
manual from 9th century recovered in Dunhuang.
"To reject practice by saying, 'it is conceptual!' is the path of fools. A tendency of the inexperienced and something to be avoided."