The mind has five aspects, but the aspect that is best known is that for which we use the word "mind." Mind means: the creator of thought and imagination. The mind is a soil upon which, in the form of thoughts and imaginations, plants grow. They live there but, as they are continually springing up, only the newly created plants are before one's consciousness, and those plants and trees which were created before are hidden from one's eyes. Therefore, when thoughts and imaginations are forgotten, they are no longer before one; one does not think about them any more, but whenever one wishes to find a thought which has once been shaped, it can immediately be found, for it still exists in the mind.