The best mirror is an old friend. (George Herbert, 17th-century British poet and author)
Looking at your image in a mirror isn’t always a pleasant experience. Whether it’s a bedhead, a dirty face, or the dreaded acne, it’s unpleasant at best. But it is reality, and we have to face it (pardon the pun). A really close friend can be a mirror into our soul. He or she may point out how well we’ve done, or they may help us recognize a faux pas and help us correct it.
The godly give good advice to their friends. . .. As iron sharpens iron, so a friend sharpens a friend. (Proverbs 12:26; 27:17)