Hey this has been a long time problem for me. Forget sitting cross legged but if I can remember back I think I still had the same issue with that. I would clear the mind and start fading away and my head would keep falling over to the side and I'd have to keep throwing my head back up. I just sit in a chair, sitting up-right, and it is very comfortable, straight spine, well nothing forced, fully relaxed while still trying to sit comfortably straight. Anyways, I don't think it's so much the back but its the weight of my head perhaps. I start going into the non-perceptive void in a sense, without even wanting to really. It's not like sleeping if you know what I mean. I just fixate on any object, or feeling in my body, my energy, like a spot on my head, crown or otherwise, I just feel around sometimes and see what subtle things feel they want attention. Anyways.. it doesn't matter what I do really.. eventually I start to go deeper and my head will either want to fall forward, to the side, or whatever, and it takes my body with it. :p
So my question then is how the hell can i make my head stay up? cuz I'm really in a nice place I like to stay in. If I lay down, THEN i just go to sleep. Sometimes I just let my head go where it wants to and I'm there slouched over in a fuzzy thoughtless state. It's hard to explain, I can't explain another state like this, but I'm aware that i am there.. or that I exist, so I know i'm not just unconciously unaware sleeping. But maybe, I think sleep is hard to define and not so much the off switch we think it is and more of a transitional thing and a loss of time or blank state just has to do with our untrained brain that can't translate the experience perhaps. Something like that.
basically I don't know what's going on. I can't say I'm a trained buddhist student by any means. I just try to live good and happy, conscious and aware and rid my energy of any bad, distorted or distracting feelings.
There is one other thing. If I take time to really feel awareness of my body, it can sometimes root and anchor me in such a way that I can't reach these states, or I do but it comes slower. I reach these states within.. 5 minutes sometimes. I don't know how to define the ideal characteristics of a meditation for me. Oh man, I know nothing. But yeah. Head falling over, kind of a big problem.
I've been meditating consistently for around 6 years. Fighting with my mind isn't so much a problem anymore. I can trance out no problem. It's just about keeping my damn head up.
Somebody, anybody, give me your input I humbly ask you. :p ha.
Thanks. - Steve