References – SN 35.234: Udayi 
Readings by Ajahn Pasanno:
Sutta: SN 35.235, Saḷāyatanasaṁyutta, “The Exposition on Burning.”
Sutta: SN 35.238, Saḷāyatanasaṁyutta, “The Simile of the Vipers.”
Sutta: SN 35.241, Saḷāyatanasaṁyutta, “The Simile of the Great Log (1).”
Sutta: SN 35.231, Saḷāyatanasaṁyutta, “The Milk-Sap Tree.”
Sutta: SN 35.234, Saḷāyatanasaṁyutta, “Udāyī.”