God created us and knows infinitely more than we know. He knows what is best for us, and what would not be good for us. If you have children, when they were very small, sometimes they asked for things that would not be good for them, or would harm them. For good reasons sometimes parents do not always give their children what they ask for, when they ask for it. Parents give them what is best for them.

It is the same way in our prayers to God. God gives us what is best for us. We are God’s children and He gives us what is best for us, and at a time when it is best for us. Our lives must be right with God before He can answer our prayers.
The heart must be open to the Spirit’s influence, or God’s blessing cannot be received. One cannot pour water into a cup that is already full.

think that prayer is the response to God's action in my life and his presence in my heart, just as the earth's existence is a response to the sun's.