This quote was in the sermon at our church a few weeks ago. I can't stop thinking about it.

Worship is the submission of all our nature to God. It is the quickening of conscience by His holiness, nourishment of mind by His truth, purifying of imagination by His beauty, opening of the heart to His love, and submission of will to His purpose. All this gathered up in adoration is the greatest of all expressions of which we are capable.

-Archbishop William Temple

as quoted by Ravi Zaccharias in his book, 

"Can Man Live Without God"