A contemporary christian band named Ascend the Hill added a 'bridge' that might be hated by the reformed old folks who prefer to stick with the original, but to me, the added lyrics do not destroy the hymn but it actually sums up the whole song, it goes like this :
(note : read the original lyrics first in wiki)
O, GOD, be my everything, be my delight
Be, Jesus, my glory, my soul's satisfied.
O, Jesus, You satisfy.
Yes, nothing in this world can ever satisfy the eternal depth of the longing of the human hearts.