I meditate quite often, with a headset playing sounds of nature and envision a beautiful waterfall scenery with intense focus. This helps me remain free and refreshed, and it is scientifically proven.
My brother is really into prayer and it makes him really happy. I asked him why and his answer lacks. In a sense, I would like to be more successful and meditation can only do so much. What does prayer do, what are its benefits, and is any of it scientifically backed (not asking for hard proof, just personal proof or even somewhat scientific proof)?