Accustom yourself to the labor of prayer, drawing near to the House of God….prayer is the proof of accomplishment and the means of progress. The more intensive is your prayer, the more pure is your soul. A flaming prayerful spirit is the result of its communion with God, Who is Himself fire and kindles the spirit of everyone who comes in contact with Him…..
go from praying both day and night while standing or kneeling, to staying with all your heart before God in constant prayer.
~St Theophan the Recluse