“Mental associations are living things. They are formations of energy assembled into invisible structures, through processes quite as valid and complicated as the organization of any group of cells.
“Comparing them with cells, they are of briefer duration, generally speaking… But your thoughts form structures as real as the cells. Their composition is different in that no solidity is involved in your terms.
“As living cells have a structure, react to stimuli and organize according to their own classification, so do thoughts. Thoughts thrive on association. They magnetically attract others like themselves, and like some strange microscopic animals they repel their ‘enemies,’ or other thoughts that are threatening to their own survival.
“Using this analogy, your mental and emotional life forms a framework composed of such structures, and these act directly upon the cells of your physical body.”
The Nature of Personal Reality, Session 633