1229.7) 112:2.20 The material self, the ego-entity of human identity, is dependent during the physical life on the continuing function of the material life vehicle, on the continued existence of the unbalanced equilibrium of energies and intellect which, on Urantia, has been given the name life.
According to this quote the ego is the material self. Which makes sense considering the definition of Ego means self.
This is the definition of ego I took from Dictionary.com.
1.
the “I” or self of any person; a person as thinking, feeling, and willing, and distinguishing itself from the selves of others and from objects of its thought.
(997.3)91:3.5 Aside from all that is superself in the experience of praying, it should be remembered that ethical prayer is a splendid way to elevate one’s ego and reinforce the self for better living and higher attainment. Prayer induces the human ego to look both ways for help: for material aid to the subconscious reservoir of mortal experience, for inspiration and guidance to the superconscious borders of the contact of the material with the spiritual, with the Mystery Monitor.



