Ok, I might also elaborate. Here goes.

We can choose (as well as be forced to) to end mania, but we risk a very big impact on our sanity, bigger than if we'd continue.

We can choose (as well as be forced to) become depressed, going on without it, but we risk chronic insanity.

If we take the risk of having depression and mania, we might actually accomplish something we want to accomplish. If we distance ourselves from our emotions and don't want anything, we might have better chances of staying alive.

If we allow more of our manic-depressive behaviour into our personality (arguably/probably it is a choice you have to make early on), we risk being chronically dysfunctional, but we may have more direction and stability.