It depends
Sea
The sea mirrors the scale of your emotions and fortune. A calm, wide, shining sea is a grand good sign — big opportunity, abundance, and a clear mind. Rough waves or a dark, stormy sea reflect turmoil to cross with care. Sailing or swimming smoothly suggests you are moving well through a large matter.
It depends how it appeared
The same symbol is read differently depending on what happened in the dream.
- The sea was calm and wide
- The grandest good sign in the water symbols. Read as scale: an opening larger than the one you are currently looking at.
- The waves were rough or the sky was dark
- Read as confusion to cross carefully. The old reading did not call it danger; it called it weather, and asked whether you had a boat.
- You were on a boat
- The answer to the question above, and a good one. Read as handling something large well: the size stays, but it stops being yours to swim.
- You swam easily
- Read as capability without support, rarer than the boat, and read as the stronger of the two.
- The tide came in toward you
- Read as fortune arriving all at once. In the money readings this was one of the largest signs kept: an incoming tide, not a flood.
The character's element
海 水 → Water (水)
Only because the radical is itself an element character. Where it is not, this page says nothing — there is no sourced table that assigns an element to every symbol.
Traditional Korean dream reading (해몽), shared for fun and reflection.