To have only pleasure without a moment of pain is just not possible. That is why we have invented enlightenment, eternal happiness, God, ultimate pleasure. There is a quote, "When you talk to God, it is called prayer, and when God talks to you, you are called crazy." All your interests are materialistic.
Why do you pray to God? What do you want him to give you? Why should he give? It is like the man who loses in his business. Somebody else is gaining, like in the stock market. On whose side should God be?
How can such a God who is supposed to be all merciful answer our prayers? That God is a crook. If he wants you to pray to give you whatever you want, something is funny there. He should give to everybody without prayer. The one who prays gets the goodies and the one who doesn't pray, like me, loses everything. What kind of God is he!