...this intellectual insight into "not-self" led to a direct experiental insight of "not-self" lasting for a few seconds....
....I thought about just breaking it all down to sensations and observing them via the Three Characteristics, but instead I decided to engage it at a content level for a while, allowing the opening to flow around through my psych...
....In the meantime I saw how certain emotional blockages were being and still could be released in the future...eventually I went back to the standard noting/noticing.
I find also benefical sometimes to let this direkt inquiry to happen. It is like the 2nd gear by Kenneth Folk.
I wouldn't call it "lost in the content" as you clear about the no-self charateristcs of the happenings.
Like watching movie with a "3C's googgles". The "wisdom eye" which sees Anatta is kind of in the background, so in this way attachmnet can not arise as you see the true nature of the stuff.
This is more like Investigaton of the dahrma which is the 2nd factor of enlightement.
Of course this can be slippery and change to "lost in the content" but as you write at the and you went back to noting.
This is also from the MCTB may can be mentioned here:
"If you can see the true nature of the sensations
that make up a fun and healthy life, there is no need for any other type
of renunciation!"
NM