If you dreamed about a black snake in the sea: At least try to learn something, The advice and direction you will receive may seem unusual, but it's still worth a try Dear Virgos…. Seeing a black snake in the sea in a dream means not being able to escape from the calamities in your head and having hard times, falling into a needy position, and the decrease in your possessions, giving up gratitude. To see a black snake in the sea in your dream and to be afraid signifies a strong enemy and a difficult life.