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.
If your spirit is not fit to see the Beloved, neither will your heart be a bright mirror, fit to reflect love. It is true that no eye is able to contemplate and marvel at Love's beauty, nor is it capable of understanding; one can no feel toward the Beloved as one feels toward the beauty of this world. But by abounding Grace, we have been given a mirror to reflect the Beloved, and this mirror is the heart. Look into your heart and there you will see Love's image.