The questions as to what one is, why he is here, and what his destiny is have probably come to everyone at some time or another. Job asked (7:17), "What is man, that thou shouldest magnify him? and that thou shouldest set thine heart upon him?" The Psalmist queried (Ps. 8:4), "What is man, that thou art mindful of him? and the son of man, that thou visitest him?"
To look to the material aspect of things for an answer is to find only confusion, false sense, and frustration as did Job when he reasoned from the material, limited, human viewpoint. When he realized that man is at one with God, he gained release.
Mary Baker Eddy has given a clear and comprehensive answer to the question, "What is man?" in the Christian Science textbook, "Science and Health with Key to the Scriptures." She says in part (p. 475): "Man is not matter; he is not made up of brain, blood, bones, and other material elements. The Scriptures inform us that man is made in the image and likeness of God. Matter is not that likeness."