Welcome to the Forum!
Think about it this way: I’m assuming you’re familiar with exercise–maybe calisthenics or weightlifting or perhaps yoga. When you exercise, do those results match what you’re meaning when you ask about “permanent”?
Because in some ways, they could be called “permanent,” in that, after enough exercise, you can still carry some “heavy” things around. Maybe those things aren’t as heavy as the weights that you’d lifted, but you had exercised enough to cause your body to grow enough muscle so that you’d leveled up your strength and now you might be calling that level up “permanent.”
And, like exercise, if your results are no longer sufficiently “permanent,” what’s the big deal? You just go back to doing what gave you your results, right?