If your dream featured an aerosol can, there is something in your past that you need to hold on to and preserve.
The dream may also symbolize how you “can” do something. Don’t underestimate your abilities and talents.
If you dreamed of spraying the can, you will soon get some good news or learn some secret knowledge. However, if the can in your dream was empty, discarded, or you threw it away, you may have serious money troubles ahead - start saving!
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