Wet the finger and touch the “letter” on the candle. If it come off on the finger, it means a letter for you.
Maine.

Wet the finger and touch the “letter” on the candle. If it come off on the finger, it means a letter for you.
Source: Current Superstitions (1896), entry 1441.
Fanny D. Bergen, editor.
Modern normalized navigation; the historical attribution above remains unchanged.