Ken Wilber writes that all valid knowledge - in whatever realm - consists of three basic components, which we will call injunction, illumination, and confirmation ...
- An instrumental or injunctive strand. This is a set of instructions, simple or complex, internal or external. All have the form: " if you want to know this, then do this."
- An illuminative or apprehensive strand. This is an illuminative seeing by the particular eye of knowledge evoked by the injunctive strand. Beside self- illuminative, it leads to the possibility of:
- A communal strand. This is the actual sharing of the illuminative seeing with others who are using the same eye. If the shared vision is agreed upon by others, this constitutes a communal or consensual proof of true seeing.
... the injunctive strand demands that, for whatever type of knowledge, the appropriate eye must be trained until it can be adequate to its illumination ...
Now if a person refuses to train a particular eye (flesh, mental, contemplative), then it is equivalent to refusing to look, and we are justified in disregarding this person's opinions and excluding him or her from our vote as to communal proof ...
One can train the mind's eye for outward philosophic seeing or for inward psychological seeing ...
In Zen: zazen, satori, and imprimatur. There is no Zen without all three strands; there is, in fact, no real esoteric or transcendent knowledge without three. One first takes up the practice of contemplatio, which may be meditation, zazen, mantra, japa, interior prayer, and so on. When the eye of contemplation is fully trained, then look.
Wilber, K. Eye to Eye: the quest for the new paradigm. Shambhala Publications, Inc. 2001