There’s something meaningful that you want to do. The only problem is it’s going to take a long time to do it. Maybe it’s schooling of some sort, or chipping away at a big project.

Yes, it’s going to take a time horizon of years, maybe even decades. The time will pass anyway, though. Or in a more lyrical form, “The time does itself, all you gotta do is show up.” 

You might as well give it a shot.