Hi Earnest:
There are probably limitations to full attainment to just about all human attributes. The the thing is, as one advances farther into self awareness and self understanding, new visions, questions, and challenges are presented. So, one is never really fully fulfilled. But I think you've made a good point - pragmatic really. Self awareness is an obtainable attribute; self awareness requires depth of inner honesty and humility.
Regards, Barry