What was the meaning to the breeze thought the poem?

It's seen as a punishment; the mariner, along with the crew is made to bear the heat of the sun when the ship comes to a halt, the breeze stops and intensifies the suns heat: "Down dropt the breeze, the sails dropt down..." "All in a hot and copper sky, The bloody sun at noon."

The Ancient Mariner is punished mentally by the spiritual world. The Mariner feels responsible for his crews suffering (along with the Mariners own suffering) as the penalty for killing the albatross.