Makes the soul feel good.
People have NO idea how 'good' that 'good' feeling really is.
Working your butt off all day on a project, even something fairly simple. (like this stupid Tilapia pond I am drowning in :/ )
But at the end of the day, when your 'work' has something to show for it, and it's something useful. It really makes you feel good. It's VERY motivational to go out and do more, and if you are on a diet or something that involves getting exercise, or do stuff to 'improve' your health. This kind of stuff is a HUGE motivator too !!
No you don't have to mindlessly lift weights for 90 minutes straight to make your arms stronger.
No you don't have to jog 4 miles to get your stamina up, (thus wrecking your knees ankles etc in the process bang bang banging on the hard pavement)
Load the back of your truck up with dirt. Shovel that one shovel at a time, one wheel barrow at a time, and wheel it 100 feet over to where you are putting your new coop / garden etc at. At the end of the day you are TIRED, your muscles are aching because you gave them one HELL of a workout. (umm yes shoveling 4000 lbs of dirt into and then back out of a truck, then moving it throwing it down, raking it etc IS a lot of work !!
At the end of the day, your garden is standing tall
At the end of the day, your chickens are happy because they have new dirt to rumble in
At the end of the day, you have a NEW tote or three of 'compost material' to work on
At the end of the day, you burned a LOT of calories, and have a LOT of GOOD stuff to show for it, you didn't have to deal with any NOT GOOD creatures of the 2 legged variety, and the most important
YOU FEEL GOOD
Now if could ONLY get the rottentoo to see the benefits of this and STOP trying to eat his harness when I try to bring him out, life would be perfect...
Aaron