I think your dream may also be looking at the past, wondering what is happening with your old friend/s - perhaps the vase represents your life now, and the friend on the other side of the picture represents the life that is behind you. You have stored the painting somewhere safe though so, just as you could go and get the painting and look at both sides if it were real, you always have the option of calling old friends up in the future - your dream could be letting you know this?
