I can probably do up-notch as well as most anyone, it's just that rigorous brain workouts are taxing and it takes too much time. I know what you mean, though. I took a break from the forum in part because I felt disappointed when most of my posts fell short of reflecting the respect I have for others here, i.e., sick of my own pabulum. Then I came back and fell right back into my same old habits. Thank goodness for the inspiration I draw from others here!
Anyway, as your noble aspirations for more depth struck a chord, it occurred to me that "Tarvu" might be the root of an "ism" and "ist" might refer to a practitioner. And so I googled it. I never knew. I get it now! I feel enlightened!:
https://www.youtube.com/watch?v=S-t7MV-Z6Pc