References – Snp 4.6: Old Age 
“Snp 4.6 says something about not clinging to passion and dispassion. Usually I hear that cultivating dispassion is a good thing.” Answered by Ajahn Pasanno. [Clinging] [Sensual desire] [Dispassion]
Can We Function without Attachment? [2017], Session 3, Excerpt 2
“Snp 4.5 and Snp 4.6 refer to what is seen, heard and thought. Is there more to this than developing awareness of what you’re thinking, hearing, and seeing?” Answered by Ajahn Pasanno. [Sense bases] [Direct experience]
Can We Function without Attachment? [2017], Session 3, Excerpt 6
Readings by Ajahn Pasanno:
The Island by Ajahn Pasanno and Ajahn Amaro, Chapter 14, pp. 258-265:
Suttas: SN 35.82; SN 35.116; MN 8.3; SN 4.16; SN 35.90; SN 35.248; Snp 954; MN 72.15; SN 12.51; MN 138.3; Snp 839; Snp 794-5; Snp 812-13; Snp 537; Dhp 421; Dhp 348.
A Still Forest Pool by Ajahn Chah (commercial) p. 73.
SN 35.248: Yavakalāpī.