Dreaming of a can means optimism to continue filling the can and the can contains nourishment. This is a sign for you to work harder and become obsessed because you can. Even if you fill the can by small amounts each day, the consistency applies to your life while you are getting better each day little by little. When you come across a difficulty, reach back into the can and see that you have been able to overcome what you previously thought as impossible, and any difficulty is easily brushed off your shoulders.