Burning candle
A lit candle giving steady light — a small, vulnerable flame consuming itself to keep a room lit.
A burning candle in a dream is the dream's image of a small, vulnerable flame consuming itself to keep a room lit. The candle burns down; the light is paid for in wax. The dream brings the candle when something in your life — an attention, a kindness, a vigil — is providing light by consuming a finite resource. A candle burning steadily through the evening is the dream affirming the willing exchange. A candle burned down to nothing, with the wick drowned in its own wax, is the dream noting that the small finite source has been spent completely, and the room that depended on it is now dark.