To see or use a locker in your dream, signifies aspects of yourself which you have kept hidden inside. Consider what items and belongings are in the locker. In particular, to dream of a school locker, denotes hidden feelings, knowledge, and attitudes that you need to learn and/or acknowledge.

To dream that you cannot open a locker or that your forgot the combination, suggests that you are unsure of where you stand in a particular situation. You feel that you are on shaky ground. If you cannot find your locker, then it also symbolizes your insecurities about your role or position in a situation.

To dream that you are in a locker room, suggests that you need time to cool off and calm down. It also indicates that you are involved in some tough competition or overcoming an obstacle in your life. Perhaps you are trying to pursue a love interest.