Seraphs are angels who reside in the presence of God, giving continual glory, honor, and adoration to him...The fact that these holy beings were shown to him [Isaiah] as having wings was simply to symbolize their ‘power, to move, to act, etc.’ as was the case also in visions others had received. (D. & C. 77:4.)(Bruce R. McConkie, Mormon Doctrine, p. 702-3)