All great Traditions teach us to ‘awaken more, detach from self more and serve others better’. The barrier is always the self, or at least the false, egoistic self. At least one of the great Traditions, the Baha’i Faith, includes teaching on bringing ourselves to account each day. Over time we must see more deeply into our motivation – as in the challenge that ‘the good deeds of the ordinary person are the sins of a saint’.
The usefulness of ‘selfing’ includes seeing it as a verb. This means our self-centredness can be much subtler than we think. The ‘devil’, in this case our egoistic self, shape-shifts as we mature.
Here is Paul on ‘selfing’;