The tangible world is movement, say the Masters, not a collection of moving objects, but movement itself. There are no objects "in movements", it is the movement which constitutes the objects which appear to us: they are nothing but movement.
(What is observed) is not a homogeneous and motionless block. It is a "universe" formed by a large number of particles in movement.
In every case (the sense of sight and its object) is a question of the meeting of two aggregates in motion, and also, in every case, it is a matter of a sensation followed by an interpretation which brings it into the realm of consciousness while distorting it.
The Secret Oral Teachings in Tibetan Buddhist Sects