What is the Mariner's state of mind during his journey home?

The Ancient Mariner drifted on the ocean in this company, unable to pray. One night he noticed some beautiful water-snakes frolicking at the ship's prow in the icy moonlight. Watching the creatures brought him unprecedented joy, and he blessed them without meaning to. When he was finally able to pray, the Albatross fell from his neck and sank into the sea. He could finally sleep, and dreamed of water. The Mariner feels a sense of peace that is new to him. When he awoke, it was raining, and an awesome thunderstorm began. He drank his fill, and the ship began to sail in lieu of wind. Then the dead sailors suddenly arose and sailed the ship without speaking. They sang heavenly music, which the ship's sails continued when they had stopped.