Kenshou,Kenshou wrote: I can't really say though yet what "works", since I have no idea if I've gotten to jhana yet. I get to points where focus becomes very strong, piti and sukha are so strong that they almost seem to drown out the defined position of the body, and the the fuzzy-head/face-pressure-nimitta-thing that is powered by the breath seems to start to envelop/draw in my awareness (though mindfulness of the breath -still- remains at the peak of it all). It really feels pretty interesting, but I'm hesitant to claim that it's a jhana. Certainly feels like it could be close, though, maybe.
When you attain the first jhana, there won't be any doubt about it. I think Ajahn Brahm and Catherine both mention the "bounce" that is possible from the intensity of the sensation. Also remember their advice about holding on to the breath too tightly. A hard and fast "grip" on the breath is counterproductive. I believe it's necessary to maintain resolve over time, pay attention to what works and what doesn't, and expect to "burn through" more than a few sittings simply experimenting.