CHECK is guiding frame that is actively compared to your environment, whatever it is. It evaluates your sensual material for matches to its frame.

The operation of CHECK itself can by further detailed by subcode.

EXAMPLE:


CHECK: faces
	ROAM your focus
	WHEN you focus on a face:
		HOLD your focus
		CONSIDER face: expression
		OBSERVE thoughts
		ASSOCIATE thoughts with words

Here, the faces form the basic guiding frame. When they lead to you focusing on a single face, a suboperation is engaged.

Note that the CHECK does not have to be literal. It makes no difference to it (unless otherwise specified) whether your findings are conventional.

EXAMPLE:

WHILE: listening to music
	CHECK: worms

This code is likely lead to rather associative worms.