I am currently sitting in Burmese position. Sometimes I do half lotus with minor pain (when left leg is up). I have sat in full lotus a few times and every time I end up with more leg pain and sometimes even pain in left side of the neck. But I find the half lotus and full lotus seem to bring an immediate stillness and sense of calm to the body. I need some tips on how you went from burmese or half lotus to full lotus. Are there any exercises or yoga postures?

Second question on hand mudra: I read somewhere that the middle knuckles should overlap when we place hand mudra. I see that some teachers do sit that way while others don't. I find doing that a bit uncomfortable. I usually bring my hands together till my thumbs touch slightly and leave like that. It is more relaxed and feels more natural. what do you suggest