" You know Janus is where the word January comes from? It’s named after the same god as this island. He’s got two faces, back to back. Pretty ugly fellow.”
“What’s he god of?”
“Doorways. Always looking both ways, torn between two ways of seeing things. January looks forward to the new year and back to the old year. He sees past and future. "

― M.L. Stedman , The Light Between Oceans