we are threatened with suffering from three directions: from our body, which is doomed to decay..., from the external world which may rage against us with overwhelming and merciless force of destruction, and finally from our relations with other men... This last source is perhaps more painful to use than any other. (p77)
Renunciation is not about pushing something away, it is about letting go. It's facing the fact that certain things cause us pain, and they cause other people pain. Renunciation is a commitment to let go of things that create suffering. It is the intention to stop hurting ourselves and others.