Every sacrifice is therefore, to a greater or lesser degree, a self-sacrifice… Hence it is the self that causes me to make the sacrifice; nay more, it compels me to make it. The self is the sacrificer, and I am the sacrificed gift, the human sacrifice.
Jung argues that genuine sacrifice is always self-sacrifice compelled by the Self, which is simultaneously the agent and the end of the offering, with the ego as the human victim.
, Psychology and Religion: West and East, 1958thesis