禁止形 => Negative imperative form N4
[禁止「きんし」] => Don't do N4
Can, Should, Must
~をきんじえない(~を禁じ得ない) => can't help but; can't refrain from ~ N1
この / その / あの => this / that N5
Spatial relations
を[禁「きん」]じ[得「え」]ない => Can't help but do A, can't hold back from A (emotional response to something) N1
Will, Decision, Doing
ものの => but, although N2
ものの => but, although N2
Things do not match the prediction
その...その => Every... N1
Happens next
...そのもの => Myself... N2
Demonstrate by example
そのものだ => exactly ~ N2
Consider it
~のは…ぐらいのものだ => only (emphasis) N1
Limit
~のなんのと => For example... N1
Demonstrate by example