References – SN 35.235: The Exposition on Burning 
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.”
The Fourth Foundation of Mindfulness [2013], Session 43
“There’s a tradition that if one keeps the Five Precepts, one stays in the human realm. SN 35.235 implies that if one’s senses are unrestrained, one could end up in the lower realms. Any thoughts?” Answered by Ajahn Pasanno and Ajahn Karuṇadhammo. [Five Precepts] [Human] [Sense restraint] [Hell] // [Death] [Conditionality]
The Fourth Foundation of Mindfulness [2013], Session 43, Excerpt 1
“SN 35.235 contains the phrase, ‘grasp the sign through the features.’ Does this differ from the more frequent ‘signs or features?’” Answered by Ajahn Pasanno and Ajahn Karuṇadhammo. [Sense bases] [Sense restraint] // [Sensual desire] [Commentaries]
The Fourth Foundation of Mindfulness [2013], Session 43, Excerpt 2