Clouds are where we get silver lining From. Even on a computer screen, a mobius strip has depth at the edge! Could you explain your last sentence?
Exactly: the *abstraction* of a cloud (it being an ominous thing, with non-silver sides) is what we imagine has a silver lining: the physical cloud itself has no sides, and no lining.
Not if the sun isn't shining on it. The analogy and correlation is that of our awareness and consciousness shining light on our life situation, which might be very cloudy indeed.