The psychological self is made of images, ideas, and memories of:
wife, mother, daughter, friend, enemy
lover, boss, teacher, pets
countries, states, towns, neighborhoods
houses, mortgages, clothing, cars
titles and degrees
Professor, Doctor, BFA, MFA
teacher, architect, accountant
religious and political
accomplishments and failures,
desires and plans,
addictions and pleasures.
Each new layer of attachment adds to the sense that I exist, I have continuity, I am related, I am important in relation to what I associate with and disassociate from.
All of this adds up to identity, an accumulated personal identity, one which builds with each additional experience and particular marker of accomplishment. If each of these experiences is a separate form, and there is a lifetime of forms, there will be accumulation, layers of memory,
form building by addition of form.