Aggi: Fire
Greed, hate, and delusion burn as the three fires. Striking a light in the dark to walk by means choosing what will consume you, since a flame gives sight and eats fuel in the same motion. Ringed by torches you lit yourself, you are warm, lit, and burning all at once.
Upādāna: Fuel, Clinging
One word covers both clinging and the fuel a fire feeds on. Adorning yourself with torches holds the burning close against the body, where letting go would mean going dark. So the feeding never stops: each armful gathered buys a little more light and another hour of carrying, and the load grows heavier as the night goes on.
Avijjā: Ignorance
Avijjā is the not-knowing that keeps the wheel turning. Someone walking in the dark with nothing lit at least knows they cannot see, while the torchbearer sees a small bright circle and takes it for the whole road. A held-up flame lights a few steps and blackens everything past them, so the light itself becomes the blindness.
Kamma: Deed and Ripening
Kamma is action bearing its own fruit. The hand that delivers the sorrow is the hand that struck the match, and nothing is added to what was already set going when the tinder caught. Fire does what fire does, and whoever lit it stands nearest.
Dukkha: Suffering
Dukkha covers the unsatisfactoriness threaded through conditioned things. Lying down comes at the end of every day's walking, and the bed you reach is built from the road you chose to light. Torches burn down, as torches do, and sorrow is what is left when the light runs out and the walking has to stop.
Nibbāna: Going Out
Nibbāna describes what a flame does when nothing feeds it. Coolness comes from setting the torches down and letting the dark be dark, which is the harder discipline for hands trained to keep striking sparks. The way through is not a brighter fire; it is an unlit road, walked leaning on a light you did not make.