"Real prayer cannot come from men whose characters are contrary to the mind of God."
Charles Surgeon
"Often times men pray to the Father in My name, but do not abide in me; that is, they take My name into their mouths and on their lips, but not into their hearts and lives. That is the reason why they do not obtain what they pray for. But when I abide in them and they in Me, then whether they ask from the Father they shall receive." (John 15:7)
Sundar Singh
"Prayer is a love relationship with God. Prayer is having intimacy with the Lover of your soul."
'The Mechanics of Prayer', Living Lilies