Is God disinclined to acquiese to your requests?
Do you feel like you pray and pray and pray...and yet things are not going your way?
Perhaps we would do well to remember (as Rob Bell has said) that we live our lives between two trees...the Tree of Life in the past (Garden of Eden) and the Tree of Life in the future (New Jerusalem), with the River of Life flowing between them and all of our holy scripture.
If we remember where we live, maybe we can experience God's blessings right where we are and our experience of God answering our prayers (or not) might shift.