Taking antidepressants (when they work) is sort of like walking out of a cave. Things become gradually less and less dark until you can see things clearly around you - but if you look back, there is still impenetrable darkness that cannot be understood or lit. You're no longer in it, but it's just as impossible to understand as it was while you were in it.

It's still pretty dim in here, but I'm beginning to see my way around.