To see an ocean in your dream, represents the state of your emotions and feelings. The dream can also suggest that you need to step back and look at the wider perspective.

If an ocean is calm, it signifies favorableness, comfort, and peace

a stormy sea denotes chaos, arguments, disturbance, and trouble in waking life.

A dream of being lost at sea, means you feel lost and that there is no way out.

To dream of swimming deep in the oceans, indicates that you are exploring the realm of your unconscious.