…self-aware essence unique to a particular living being. In these traditions the soul is thought to incorporate the inner essence of each living being. It is believed in many cultures and religions that the soul is the unification of one’s sense of identity. Souls are usually (but not always as explained below) considered to be immortal and to exist before their incarnation in flesh. The concept of the soul has strong links with notions of an afterlife, but opinions may vary wildly, even within a given religion, as to what may happen to the soul after the death of the body. Many within these religions and philosophies see the soul as immaterial, while others consider it to possibly have a material component, and some have even tried to establish the mass (or weight) of the soul.