There are no limits on true self-giving. It is not just to those one likes that one makes the offering. This involves a love that issues from the very CENTER of the person's being, directed to the CENTER of the other person's being, a love that gives ALL that the person is in order to foster the other person's life, a love that is offered to EVERYONE, without exception and without condition. The love is not offered to people because they are one's friends; people become "friends" because one loves them.
We think that by protecting ourselves from suffering, we are being kind to ourselves. The truth is we only become more fearful, more hardened and more alienated. We experience ourselves as being separate from the whole. This separateness becomes like a prison for us—a prison that restricts us to our personal hopes and fears, and to caring only for the people nearest to us. Curiously enough, if we primarily try to shield ourselves from discomfort, we suffer. Yet, when we don't close off, when we let our hearts break, we discover our kinship with all beings.