Locker 
To dream of a locker suggests that there are things about you that no other people know about. Consider and take note of items that can be found inside the locker. For example, to dream of a school locker signify hidden feelings and thirst for knowledge.
To dream that you cannot open a locker or that you forgot the combination means that you are hesitant to take a stand in situations in which you are unsure about the outcome. In dreams where you cannot find your locker, this symbolizes your insecurities.
Lock
To dream of a lock indicates failure to assert yourself. This keeps you locked out and left behind. It mirrors a part of your personality that you don't want discovered or have difficulty expressing.
To dream that a lock is accidentally placed around your wrist means you are uncertain if it is prudent to openly express your thoughts and feelings. You feel that doing this would be a great risk.
Locked
To dream that you are locked out speaks of your feelings about being left out and unaccepted by your peers. This mirrors your inability to effectively channel your feelings and emotions. Think of which aspect of your waking life makes you feel locked out.
Locket
In a dream a locket represents a hidden memory. This memory may have been treasured in the past and has recently been rediscovered.
To open a locket in a dream is to rediscover something of value which you had lost, such as a connection to a family member or friend.
Locker Room
To dream that you are in a locker room denotes that you need time alone for relaxation and contemplation. It also means that you are in the process of experiencing some rough times in your waking life. It may also be that you are pursuing a love interest.
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