Buddha activity doesn't mean radiating light and elevating yourself up a thousand feet in the air. That's not the point. The point is, as Zen is always saying - and Tibetans understand this also very well - every activity becomes perfect Buddha activity.
Tenzin PalmoIf you put a little pin in the middle and you make a little space, a little circle, then the nature of the mirror shines through. So now you know the mind is not dust, that behind that dust there is this mirror-like nature of the mind, and if it's a big enough hole, you might be so transfixed by the hole you don't notice the rest of the dust.
Tenzin PalmoLet's consider: at the time of the Buddha, when he attained enlightenment, according to the old texts, in the first watch of the night, he went through all of his past lifetimes. Then in the second watch of the night, his mind opened still further and encompassed the coming into being and dying and re-coming into being of all beings, everywhere. The third watch of the night, he realized interdependent origination. He realized interdependent origination because he saw it. It wasn't some theory he thought up. He saw it. That was his enlightenment experience. That was why he was a Buddha.
Tenzin Palmo