In strength training, there is an interesting concept called deloading. The best way to be strong is to continually add to the weight you are lifting, but you have to program weeks or days where you take off some weight of the bar to recover. You still do the same things in your workout just at a lighter weight or you do easier versions of the exercises you do.
The obvious reason is to let your muscles heal. Training for strength rips apart your muscles and you have to let them rest for a while so they knit back together in stronger versions. Deloads are also great times to work on form and correct bad habits. This way you prevent injuries from happening in the future.
More importantly however, deloads let your central nervous system recover. Most people think that weight training is purely physical but the reverse is more closer to the truth. Lugging around weights that are far heavier than you taxes the mind more than the body. You have to will yourself to lift something before your body responds. That kind of training stimulus beats up your nervous system and there will be days when your brain simply refuses to do what you tell it to. Linear progression, not stopping and continually adding to the weight, actually causes you to stall in your progress a lot of times.
You program deloads so your nervous system gets appropriate time to catch up with the rest of your body. After the deload, you go back to being beastly and kicking ass. By doing so, you actually have more progression into your goals. You take one step back to take three steps forward.
The lesson here translates to life as well. We all carry heavy burdens. We all have proverbial monkeys on our back. They all threaten to crush us eventually. We are all being ground down into dust. Sometimes, scratch that, it’s always good to remember that you can let go of your loads momentarily. You need to recover. Breathe in and breathe out. Then you go back to carrying whatever it is you have to carry. Just remember to keep pushing. Keep fighting. Just do not forget that you have to deload to get further. Then you find out that you are stronger than you ever imagined yourself to be.