The instrumentative: a useful, if currently unavailable, distinction.
We say, constantly, that one is to sit with various afflictions and arisings. It's hard not to consider this in the inflection of patience: to sit with, to bear with, to put up with.
"With", in other words, making a choice for us. The original semantic sin of the Latins, compressing the instrumental into the ablative without our being consulted.
Reconsider, then, the instrumental case, and sit with your various afflictions and sensations; make them the instrument of your sitting, just as surely as your body is.