When I lift weights… time crawls.
When I train martial arts or play a sport… time flies.
Some people will tell you to only do the things that make time fly.
…After all, why suffer your way through exercise, for example, when you could be getting it in in a fun way?
And while there’s absolutely nothing wrong with choosing the fun route… there is something to be said about learning how to discipline yourself to endure the type of temporary suffering that leads to lasting benefits/rewards, too.
Because once you can learn to do it for, again, weight lifting as an example… not only will you be hardening your body… but, you’ll be hardening your mind.
And a hardened mind isn’t only useful for lifting weights…
It’s one of the most useful tools for every single other endeavor you ever come across in life.