Staretz Silouan: He who loves the Lord is always mindful of Him, and remembrance of God begets prayer...

We eat and drink every day, yet on the morrow our bodies need drink and food again. In like manner the recollection of God's bounties never wearies the soul but disposes her still more to think on God. Or again: the more wood you pile on a fire the more heat you get, and thus it is with God - the more you think on Him the more you are fired with love and fervor towards Him. 

He who loves the Lord is always mindful of Him, and remembrance of God begets prayer. 

If you are forgetful of the Lord you will not pray, and without prayer the soul will not dwell in the love of God, for the grace of the Holy Spirit comes through prayer. Prayer preserves man from sin, for the prayerful mind is intent on God and in humbleness of spirit stands before the face of the Lord, Who knoweth the soul of him who prays.

Staretz Silouan