www.alphadictionary.com

A curious word that means studying by candlelight, but
also it can mean meditation.

The verb form has been under the Dr.'s care twice:

www.alphadictionary.com/bb/viewtopic.php?t=1939
www.alphadictionary.com/bb/viewtopic.php?t=5544

"In winter I go to bed at night, and dress by yellow candle light.” R L Stevenson's A Child's Garden of Verse. Perhaps a loose quotation but you get the gist.