True vocation joins self and service, as F. Buechner asserts when defining vocation as "the place where your deep gladness meets the world's deep need." Buechner's definition starts with the self and moves toward the needs of the world: it begins, wisely, where vocation begins – not in what the world needs (which is everything), but in the nature of the human self, in what brings the self joy, the deep joy of knowing that we are here on earth to be the gifts that God created.
The power of love is in hope, For by it we await the reward of love. The failing of hope is the disappearance of love. Hope is a rest from labors in the midst of labors. Toils depend on it. Mercy encircles it. Experiencing the gifts of the Giver of Life engenders hope. But he who is without experience remains in doubt.
~ from CHRIST THE ETERNAL TAO by Hieromonk Damascene