In response to Augustine's classic discussion of this question, Jurgen Moltmann writes profoundly of what love of God means and urges us towards a more embodied, holistic, and socially-oriented spirituality:
For a long time I looked for you within myself, and crept into the shell of my soul, protecting myself with an armour of unapproachability. But you were outside - outside myself - and enticed me out of the narrowness of my heart into the broad place of love for life. So i came out of myself and found my soul in my senses, and my own self in others.
The experience of God deepens the experiences of life. It does not reduce them, for it awakens the unconditional Yes to life. The more I love God the more gladly I exist. The more immediately and wholly I exist, the more I sense the living God, the inexhaustible well of life, and life's eternity."