For a few weeks I've noticed that during pranayama, the in-breath has been moving up my spine differently. Whereas it used to move up vaguely in the center of the spine, it's now toward the back, and then more significantly, it passes through the back of my head before making the sharp turn to finish at ajna. I've had no intentions around this - it's just something that I notice, and the effect of it seems to be a space opening up in the back of my head. This is giving me the effect during meditation of a larger and more open experience; the difference between watching a play on a stage at the front of a theater, versus watching a theater in the round (where I am at the center of the stage). Awkward explanations, I know. Does anyone know what I'm talking about? I'm rather enjoying it, and am not looking for advice on how to end it. I'm simply looking for insights into the matter. Also, the thin line of the breath isn't so thin anymore - it actually takes up quite a bit of room. Again, not something I'm worried about, but I'd like to hear if anyone else has had a similar experience. Thanks!