a candle
Examples
Do not be upset when people only remember you when they need you. Feel privileged that you are like a candle that comes to their mind during their darkest hours.
When a mother prays for her children, she must melt like a candle. She should pray silently and with her hands raised high towards Christ, to embrace her child in secret.
Absence extinguishes the minor passions and increases the great ones, as the wind blows out a candle and fans a fire.
Better to light a candle than to curse the darkness.
Don't curse the darkness, light a candle.
Light a candle for God and another for the devil.