The mailbox symbolizes messages. If you have a dream about a mailbox, it implies you need to find something. Your mail is quite personal, and it might reveal very vital information about your life that you were previously unaware of.
It can also serve as a reminder of tasks you need to complete or consider, whether pleasant or unpleasant. Dreaming of a mailbox, such as peering out your window and watching your mailbox to see whether the mailman will put something in it, could signal that you will soon get news or a message from someone who lives far away but remembers you.
He or she may have some pleasant recollections of you that are still treasured now, and you would receive communication from that person in actuality.
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