What is Man?

Psalm 8:3-9

3  When I consider thy heavens, the work of thy fingers, the moon and the stars, which thou hast ordained; 
4  What is man, that thou art mindful of him? and the son of man, that thou visitest him? 
5  For thou hast made him a little lower than the angels, and hast crowned him with glory and honour. 
6  Thou madest him to have dominion over the works of thy hands; thou hast put all things under his feet: 
7  All sheep and oxen, yea, and the beasts of the field; 
8  The fowl of the air, and the fish of the sea, and whatsoever passeth through the paths of the seas. 
9  O LORD our Lord, how excellent is thy name in all the earth!