Give Thyself unto me, O my God, restore Thyself unto me: behold I love, and if it be too little, I would love more strongly...
In Thy Gift we rest; there we enjoy Thee. Our rest is our place. Love lifts us up thither, and Thy good Spirit lifts up our lowliness from the gates of death. In Thy good pleasure is our peace.
The body by its own weight strives towards its own place. Weight makes not downward only, but to his own place. Fire tends upward, a stone downward. They are urged by their own weight, they seek their own places. Oil poured below water, is raised above the water; water poured upon oil, sinks below the oil. They are urged by their own weights to seek their own places. When out of their order, they are restless; restored to order, they are at rest.
My weight, is my love; thereby am I borne, whithersoever I am borne. We are inflamed, by Thy Gift we are kindled; and are carried upwards; we glow inwardly, and go forwards. We ascend Thy ways that be in our heart, and sing a song of degrees; we glow inwardly with Thy fire, with Thy good fire, and we go; because we go upwards to the peace of Jerusalem: for gladdened was I in those who said unto me, We will go up to the house of the Lord. There hath Thy good pleasure placed us, that we may desire nothing else, but to abide there for ever.
-- Augustine, from the "Confessions" (Chapter 8 to 11, excerpts)