4👑☸ Cattāri Ariya-saccaṃ 四聖諦
☸🚣 Book 4
These suttas you probably don't want to memorize word for word, but do memorize patterns, key ideas, and key phrases.
AN 7.67 Frontier Fortress
AN 8.63 4sp and 4bv as samadhi in all postures
SN 22.29 Delighting in Dukkha
SN 35.247 body immersed remembrance, 6 animals simile
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