This came up for me:
During the end of the enlightenment phase, and the beginning of the dark night, we got a cat who was very open hearted. I called him Parzifal after the innocent young man who found the holy grail. Male. Seeking enlightenment. Transcendence.
A couple of years ago, at the end of the dark night and the beginning of the endarkenment phase (although I didn't know that at the time), we got another cat. She is pitch black and very furry, and I named her Luna. The moon. Feminine. The fertile darkness.