Rainbows are colorful bridges that fall across the sky, but we can not walk across them (or use them to get to our pot of gold). Currently you may experience great joy and have extraordinary or even magical ideas, but remember that you can not walk across the rainbow bridge, so stay well-grounded. Usually a rainbow follows a rainstorm. If so, you have weathered a difficult time that is coming to closure, this dream symbol may represent your optimism. Generally, rainbows make people smile and feel happy. Thus, some may consider this dream a sign of your good luck.