To help you remember these 26 points, I have categorized them alphabetically–A to Z.
Authority – Prayers fail when we don’t pray with authority.
Burden – Prayers fail when we do not allow ourselves to be burdened with prayer needs.
Confidence – Prayers fail when we don’t have confidence in God
Desire – We don’t desire Him.
Earnestness – We don’t pray with earnestness.
Fasting – We refuse to fast.
God’s way – We don’t pray God’s way.
Holy Spirit – We don’t pray in the Holy Spirit.
Importunity – We don’t pray with importunity.
Jesus Name – We do not pray in Jesus Name.
Kneeling – We have not prayed using the appropriate prayer posture.
Length of prayer – we aren’t willing to pray long enough.
Motives – We pray with wrong motives.
Needs – We don’t see the real needs.
Obedience – We do not obey God.
Praise – We don’t give God His due adoration.
Quiet Time – We don’t have a regular quiet time.
Rest – We aren’t resting in His promises and believing in Him.
Specific prayer – We don’t pray specifically.
Teachings on Prayer – We do not let the Bible teach us how to pray.
Unity – We lack unity.
Vigilance – We are not vigilant in prayer.
Word – We don’t pray according to the Bible.
Xanadu – We have not found quiet places to pray.
Yielding –We do not yield ourselves to God.
Zenith – Our prayers are not focused.
So here are the reasons I have come up with as to why we fail in prayer. I sincerely believe that if you take all these things to heart, and likewise apply the opposite principles of success, your prayers will not fail.