The Ace of Cups is called by A. E. Waite the true house of the heart. It is the overflowing wonder of emotion, and love. It signifies utter sacrifice to another, giving, flowing and being.
There is no need to think, or do, just to feel. This tarot card carries the meaning of trusting your emotional response to a situation to carry you forward. In the past it means you may have gone with the flow which has now carried you to a new point where that must change.