Prayer is petitioning God and receiving from Him
«Ask, and it will be given to you; seek, and you will find; knock, and it will be opened to you. For everyone who asks receives, and he who seeks finds, and to him who knocks it will be opened» (Mathew, 7:7-8).
This passage of Scripture reveals three levels of praying. I really want you to see it. There are quite many places in the Bible where God has made known to us His desires and His will and promises. We can ask in prayer when the will of God has been revealed and made known.