I have to say those were some amazing posts...
"he must dare conscious descending first. then he may find healthy communion, then he may find healthy agency, then he may find healthy ascending. conscious descending may be interpreted in a one going to seven (introverted style), an eight going to two (serving), or an two going to four."
How does one consciously descend? Hmm that sounds interesting.
Also I think you have a good grasp of both intuitive and feeling functions and thus, is a good reason for it being blurred, emotion hues and intuitive are difficult to categorise, by their nature and Nanook it seems that whichever function DuchessoftheShadows, she values, having the other function, which will the make distinction difficult between INFP and INFJ. I feel you are an INFJ from reading from this, due to the categorising, systemising nature of INFJ's due to their tertiary Ti, which runs as an undercurrent in their evaluation of human orientated systems, I see this in your posts here, INFPs do too aswell, in a different manner, they compare, contrast, evaluate too, so you could be using Si either, as well hmm, its hard to say.
"INFJ Tertiary
Introverted Thinking (Ti)
Clarifying principles
Categorizing and classifying
Analyzing
Checking consistency
Universal"
"INFP Tertiary
Introverted Sensing (Si)
Reviewing
Linking
Comparing and contrasting
Noticing match and mismatch
Past"