There are times in my practice, and in life too, when I feel afloat. When I really get a sense of groundlessness, a sense that there is nothing permanent to anchor to. It is a moment of becoming fully aware of one of the four noble truths in Buddhism- that nothing is lasting or forever.
These moments are when we really need our practice~ to bring us back to center, to show us that it is the witness consciousness behind the stirrings of the mind that we are connected to.
We are a part of that ground of consciousness behind our internal stirrings.
Yoga Sutra 2.6 I-am-ness (asmita) is to perceive the seer and seeing as one.