In Buddhist ideology, the conventional self is that which is constructed in a way by the use of the pronoun, and when you realize there is no absolute ego there, no disconnected one, self, or ego, then that actually strengthens your conventional ego. It does so in the sense that then you realize it's a construction, and you can strengthen it in order to help others, or do whatever you're trying to do, it's not like you no longer know who you are. Then you can organize your behavior by using your ego, as it's now the pronoun.

Imagine a culture in which everything is geared toward helping all individuals become the best human beings they can be; in which individuals are driven to devoting their lives to becoming enlightened by the natural flood of compassion for others that arises from their wisdom.

In the practice of exchanging self & other, paradoxes abound.

To become enlightened is not just to slip into some disconnected euphoria, an oceanic feeling of mystic oneness apart from ordinary reality. It is not even to come up with a solution, a sort of formula to control reality. Rather, it is an experience of release from all compulsions and sufferings, combined with a precise awareness of any relevent subject of knowledge. Having attained enlightenment one knows everything that matters, and the precise nature of all that is.

The problem in our society is the ego psychology and conventional wisdom about "look out for #1." That conventional wisdom thinks that "love your enemy" is to some a principle no one can ever live by.

The worldly person is insane from the point of view of the spiritual person.

The understanding of it [absolute] is very important as a beginning point. Then you can use meditation, further reasoning, long-term familiarity etc., you can use all kinds of methods to deepen this understanding and to have it counter the instinctual sense of being an absolute you.