The secondary process, however, has abandoned this intention on another in its place—the establishment of a ‘thought identity’… All thinking is no more than a circuitous path to a memory of a satisfaction
Freud defines secondary process as the system that replaces pursuit of hallucinatory perceptual identity with ‘thought identity,’ imposing inhibition and bound cathexis upon the free discharge characteristic of primary process.
, The Interpretation of Dreams, 1900thesis