Now it came to pass, as He was praying in a certain place, when He ceased, that one of His disciples said unto Him, ‘Lord, teach us to prayer, as John also taught his disciples.’ Luke 11:1
We find the disciples were watching Jesus and they had come to realize that the reason for His continued power was prayer! So, they ask Him to teach them.
Prayer is NO mystery! It is conversation with God. Talk with Him like you would speak with a friend you loved! The more time you spend with Him in prayer, the more your spiritual strength will increase.