I didn't respond to your above question, Athena, because I was hoping someone who practices hatha yoga would do so, and was waiting.... I will say that I do think flexibility and strength in the body, which hatha yoga fosters, would be of benefit to myself or anyone else wanting to dive into sitting practice with devotion. Good sitting posture is an art in itself, and needs careful and mindful practice to cultivate. And I have a lifelong habit of really bad posture, in terms of alignment with gravity, so....
Those here who have done some sitting, most of us anyway, will have a hint of what I'm saying about alignment with gravity and flexibility and strength in sitting meditation. Comfort is crucial, and body pains will arise without those elements, and those will become the focus (or distraction) of the meditation, rather than the relaxed "state" insights and energetic liberations that meditation can allow. (Note: I typoed that as "medication," with a c, initially -- which made me laugh!)