I know about rainbows.
How you can’t have one without both sun and rain.
Or that the exact proportion of liquid to luminosity does not need to be an exact science.
And I also know this.
When the downpour comes, and the light goes out, if you cannot find your way through the implacable darkness, you will drown.
This is for a family I know, facing just that sort of darkness right now. I pray to God they come through it.