Yes, it was luminal, here where he stood; at the very juncture between all those heaps of culture - he poked at the air behind him with his elbow - and all this thoughtless sea.
-- Jane Alison, The Marriage of the Sea
It was only as I emerged from that woozy, luminal, state that I remembered Miranda coming into the room in her white robe to tell me the story of her uncle Richard's murder and to find some consolation in my arms.
-- Siri Hustvedt, The sorrows of an American: a novel
Liminal derives from the Latin limen, "threshold."