"Peace I leave with you, my peace I give unto you: not as the world giveth, give I unto you. Let not your heart be troubled, neither let it be afraid." - John 14:27 Without a deep inner state of quietness, one becomes prey to tension, worry, and ill health. A song, a sunset, moonlight, the sea washing on a sandy shore, these administer a healing balm. But they lack power to penetrate the inner recesses of the soul.
A profound depth therapy is required to attain healing quietness. A habitual repetition of this one text will, in time, permeate your personality with a complete sense of peace.
When tense or restless, sit quietly and allow God's words from John 14:27 to pass unhindered through your thoughts. Conceive of them as spreading a healing balm throughout your mind.