All of our prayers should have a balance of being honest communication that is yielding to the sovereign will of God. I never gave into all the requests of my children, and sometimes denying them was for their own good; but they also needed to know that they could come and talk about anything ... and sometimes they did get what they wanted ... if they did not demand it ... if they could benefit from it. They knew I enjoyed giving what I felt would be for their good and that is why they came and asked. Those conversations built trusting relationships and character in my children. This is the analogy given in scripture for prayer.
