Setting Fire to the Rain... Achieving the impossible... Shedding all the weaknesses of the past and learning from them.
That's what I believe this means.
Sage Tellah achieving the impossible,
and making it rain fire
Just like Sage Tellah's testament, sometimes, we can throw everything on the table and from a last ditch effort to shed the horrors of our world, it can destroy you in the process.
You shouldn't be so desperate to rid yourself of the past, without meditating and learning from them. If you rush the healing process too much, you'll end up hurting yourself (and others) beyond repair. Take your time and ease your healing steadily and at your own pace.
But don't be too complacent either.
Don't get too relaxed, you should take your own time with getting better, but you should NEVER come at a complete standstill. Self-discipline is crucial here as it is really up to you, and you alone, to move on from the past and take a step forward into a happier and brighter future.
And always remember how beautiful you truly are, never let it get you down, you just gotta chin up and smile!