The meaning of a dream about can.
The significance depends on the details and the action. If the dream involved many cans and they were full, you can expect some good news to reach you quite soon.
If you opened a full can, you will discover some very useful secret knowledge; if you drank from a can, you will have unanticipated joy; however, if the can featured in your dream was empty, discarded, or you threw it away or cut yourself on it, you may have serious financial difficulties ahead. Re-examine your plans for an alternative road.