Chbad,
“The other was that on the one hand the neshama is a nivra, but we learn that at it’s core, it’s one with Hashem. I wanted to understand how we experience that…”
A quick comment, unless I’m missing something, isn’t this covered in Tanya Ageres haTeshuva ch 5 or 4. Look up how he explains the verse of ויפח באפיו וכו’ ומאן דנפח..