This stylised representation shows man's ability to stand on
his feet
,
extending his arms egotistically
.
But high above man
,
be he ever so great
,
stretches the heavenly firmament, filling the empty space above his
shoulders and directing his footsteps. Hence:
,
meaning heaven -- man's rightful and authoritative head. Since the growing
light of the sky ushers in the dawn of day,
came to mean also "day".