References – SN 22.27: Gratification (2) 
[Session] Readings by Ajahn Karuṇadhammo:
Sutta: SN 22.26, Khandhasaṃyutta, “Gratification (1).”
Sutta: SN 22.27, Khandhasaṃyutta, “Gratification (2).”
Sutta: SN 22.28, Khandhasaṃyutta, “Gratification (3).”
Sutta: SN 22.96, Khandhasaṃyutta, “A Lump of Cowdung.”