I've come up with yet another question in this matter: Do you prefer to sit in seiza or with your legs crossed (lotus)? When I sit in seiza, my feet fall asleep after a while. And when I sit in lotus, my knees starts to ache. Am I getting old, or am I just too fragile for meditation?
I guess my question is this; is it better to sit then to lay down? Does it matter which you choose? You always see people meditating in lotus or seiza, but maybe it's just because "it's the way everyone else does it"?