Oh, the flames will sing for you. In case you did not know this
I will tell you now: Fire is a big splendid showoff performance. Give the flames an inch and they will take a mile. Tell them to sing for you and they will sing, given the appropriate attention. The flame will sing and it will cackle and it will spit and you will not be able to turn away from the delight it tells you of
Here's what: You must whisper your secrets quietly, something to live for. You already know that candles are like souls, and like all living things they must above all else have hope.
Matters of the flesh: tread lightly. Do not attempt to rush the heat. Things come into bloom when they are fully ripe with their secret promise. Flames are no different.
Here is the only real way to make flame sing - the only way to get anything worth hearing to sing for you - patience. Patient observance and time and inner silence. That'll do it.