To dream of a feather symbolizes inspiration or your potential. Beliefs that uplift you, make you desire freedom, or interest you in wanting to do something amazing. You may be amazed at what someone else has achieved or want to follow in their footsteps. Knowing you can do something if you want to. Feelings of having freedom at all times.
Negatively, a feather in a dream may reflect your anxiety about freely expressing yourself or being yourself. Jealousy of others having an easier experience or more freedom than you.
Consider the color and type of bird for additional symbolism. Blue feathers would represent positive inspiration. Red feathers represent negative inspiration or realizing your potential to be deceptive or angry.
Example: A young woman dreamed of a feather. In waking life she was insecure about expressing her beliefs on facebook to friends and family