Holy means “sacred, having a godly character, or spiritually and morally pure. The opposite of holy is common or profane” (Guide to the Scriptures).
“A holy man is a man who prizes the things of the Spirit above all else. He is one who has garnered control over passions and appetites, one who has achieved the victory over self. He is, in addition, one who enjoys communion with the powers of heaven. He is one who is sanctified, who is clean. … He is one who finds joy in simple living and rejoices in goodness and truth” (McConkie and Millet, Doctrinal Commentary, 2:124–25