It's called prayer; simply put: talking with God. Now, before you tune me out, consider the evidence. Even science has proven it's much more powerful than most would assume.
The relationship between prayer and health has been the subject of myriad double-blind studies over the past four decades, as even Huff Post documented. Consider these scientific bases:
Dr. Herbert Benson, a cardiovascular specialist at Harvard Medical School and a pioneer in the field of mind/body medicine discovered what he calls “the relaxation response,” which occurs during periods of prayer and meditation. At such times, the body's metabolism decreases, the heart rate slows, blood pressure goes down, and our breath becomes calmer and more regular.
In one National Institutes of Health funded study, individuals who prayed daily were shown to be 40 percent less likely to have high blood pressure than those without a regular prayer practice.
Research at Dartmouth Medical School found that patients with strong religious beliefs who underwent elective heart surgery were three times more likely to recover than those who were less religious.