"Singing with songs, hymns, and spiritual songs." Singing is both calming and exhilarating, bringing joy to us, to those around us, and to God. It involves the mind, yet transcends the mind. The act of singing in personal or corporate worship takes us​ out of ourselves and helps connect us with the One who created music, and our internal instruments, in the first place.
As the title says, singing is good for your body, mind, and spirit!