If you have dreamed of throwing the key into the sea: Your thoughts are efficient, your mindset is relaxed, cold-blooded and bitter. Throwing the key into the sea in a dream refers to getting rid of depression, taking care of yourself, a healthy life and making new plans to become rich. Removing the key from the sea in a dream indicates that you will strengthen the position you have reached and life will gain meaning, good and good works, and being happy.