The person who fits you knows what you meant, not just what you said. A Pisces match means the feeling gets there before the sentence — moods absorbed without commentary, contradictions allowed to stand, the strange dream taken as seriously as the schedule. Around them, being a mess is survivable.
The cost is the fog. The person who feels everything also drifts — plans dissolve, boundaries blur, and some of what they absorb from you and everyone else has to go somewhere, usually inward. You will sometimes want an opinion and receive an atmosphere.
What the match asks is that you carry the practical end without resenting it, and treat the sensitivity as the feature it is. Give the drift a shore to come back to, and you get the most complete acceptance available: loved with the contradictions, not despite them.