the purpose of prayer

"The purpose of our prayer should be to pray for his kingdom to come and his will to be done. Jesus himself told the Father, "Not my will, but yours, be done" (Luke 22:42). Prayer is not about coming to God with our personal agendas; rather, it is seeking his agenda for our lives. His ways are greater than our ways, and his plan is always better than our plans."

Winfield Bevins, Essentials of the Lord's prayer (read the full thing here)