This is the card of magic and illusions, imagination and pie in the sky ideas.
If this card appears in a reading it could be warning you that something or someone is not as they seem. If it was a relationship question, it could be warning you that the person you are involved with is a bit suspect and not to be depended upon, perhaps they do not deliver what they promise In a nutshell do not expect something or someone to be reliable, durable and long-term. Think of the image of trying to write your name in water, it slips away.