The joy here is not spiritualised in the slightest, and the whole thing depends on that. The shape is borrowed wholesale from a real wedding song. Call the women together, hand out sugar, thank the elders, say the day is blessed. That is what actually gets sung in a Punjabi courtyard when a bride's husband comes home. Bulleh Shah does not lay a coat of allegory over it. He puts the thing in complete and lets it mean the other thing as well.
The stanza about the gong is the heart of the kafi. A ghariyal is the brass disc a watchman strikes to mark the hours of the night, and every stroke of it, she says, is shortening her night of union. He has no idea what is in my heart, she says, twice. That is the exact complaint. He is not cruel and he is not wrong. He is a man doing his job correctly, and doing it is destroying her. Then the flat instruction: take that thing out of your hands and throw it away.
What she hears next answers what she has just thrown out. She has just demanded that a struck sound be removed, and immediately the anhad arrives, the unstruck sound, the note that plays in Sufi and yogic thinking without anybody playing it. One kind of music measures the night into pieces and takes them off her. The other has no player, no beginning and nothing to count. She can only hear the second after refusing the first.
Once she can hear it, the ordinary religious furniture goes. She forgets the two-cycle prayer and asks the wine-seller for a cup. The kalal, the tavern-keeper, is about as far from the mosque as Punjabi vocabulary reaches. Bulleh Shah was in trouble with clerics his whole life over lines like this, and he is not being provocative for its own sake. His argument is that the prayer was a way of asking for something, and the something has arrived.
The last stanza signs itself in the woman's voice and closes on two claims: my turn has come at last, and separation is now impossible. Everything else in this tradition ends with the lover still waiting. Nusrat Fateh Ali Khan's recording carried the kafi far outside Punjab. Fareed Ayaz and Abu Muhammad sing it closer to the qawwali it came out of.