The document discusses the concept of the material self and how it develops over the lifespan. It describes views from philosophers William James and Jean-Paul Sartre on how people connect to objects and develop an identity through their possessions. Russell Belk's research on the material self is mentioned, including how objects can become extensions of ourselves. The document then discusses how the material self is composed of the body, clothes, immediate family, and home, and how possessions help people manage their identities in different life stages from infancy to old age.