Maybe it's just for people like me, but knowing what's meaningful you doesn't seem nearly as difficult as acting upon it and certainly than getting it into a central place in your life - I'm hesitant to even make the latter sound like a reasonable hope. It's great if what you care about happens to be something economically lucrative, but for the rest, you've got to set up your financial base first - even if that actually isn't as necessary as it sounds, there's a lot of anywhere from encouragement to harsh pressure to go that time-intensive path to your genuine end. Personally I'm afraid of some freak mortal accident occurring before I'm able to get to the end, though I work hard.
Perhaps I'm making it more about the individual than it needs to be. Or alternately just have a lot of doubt, although that doubt ultimately doesn't slow down my actions.
Honestly, meaning was the first and easiest thing for me to grasp as a person - Fi-dominance would help with that, too. But then after that, there's a lot more that survival is about, a lot of that isn't concerned with meaning, and meaning won't last long if you're not surviving. Perhaps a sense of meaning that comes to one too formatively can be too distilled and in that way come in conflict with the way of nature to demand adaptation. That conflict would be important to resolve, then, to make real contact with a meaning that may not be what it was "supposed" to be but is more genuine than you once expected.