Having obtained the favour of knowing something, he longed for a more clear discovery of those things; and he had his desire granted. As the appearance of a man; either the angel Gabriel or Michael, who appeared often in the shape of men, and are the messengers of God in the great things concerning his church, Hebrews 1:14; others will have this angel to be Christ.
Related Commentaries of Daniel 8:15
Daniel 8:15
15 And it came to pass, when I, even I Daniel, had seen the vision, and sought for the meaning, then, behold, there stood before me as the appearance of a man.