cow-dust hour
n.— «Twilight is a special threshold moment in most shamanic traditions. This is the cow-dust hour, the window of opportunity at which to invoke the mystery of solar transformation through the Gayatri Mantra. Neither midnight-black nor blazing white, this is just the sort of “neither/nor’ state from which a fearful child might expect a man-cat to emerge, as it did from a pillar, in the Puranas.» —“The fuzzy logic of the divine Man-Lion” by Vithal C. Nadkarni Times of India May 20, 1998. (source: Double-Tongued Dictionary)