Prayer is basically a kind of very direct talk.
Prayer is “I am telling You.”
Some prayers or blessings are just a few words saying, “Thank you. I just want to say thank you,” nothing else.
In some prayers, I ask for something.
In others I just complain: “It’s not just, it’s not fair. You dealt with me wrongly.”
All of these are prayers, and they can range from a feeling of bliss to a feeling of extreme anger.
–Rabbi Adin Steinsaltz