[Discernment] (pañña) includes correct perception and skillful choices at any level of refinement. [Investigation of states] (dhamma-vicaya) refers specifically to identifying skillful and unskillful states of mind inmeditation. [Appropriate attention] (yoniso manasikāra) refers to acts of discernment related to the field of attention.

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5. “Are psychic powers and wisdom always clearly separated?” Answered by Ajahn Pasanno. [Psychic powers ] [Discernment] // [Buddha/Biography] [Great disciples] [Vinaya] [Admonishment/feedback]

Vinaya: Khandhaka 15.8: Piṇḍola Bhāradvāja uses psychic powers.

Reference: Dipa Ma: The Life and Legacy of a Buddhist Master by Amy Schmidt (commercial). [Dipa Ma] [Discernment]

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4. Recollection: Ajahn Chah would often make the distinction of holding but not clinging. Recounted by Ajahn Amaro and Ajahn Pasanno. [Ajahn Chah] [Clinging ] // [Relinquishment] [Emptiness] [Everyday life] [Sense bases] [Self-identity view]

Reference: Collected Teachings of Ajahn Chah, p. 583: “Sense Contact: The Fountain of Wisdom.” [Discernment]

Sutta: DN 16.2.25: The Buddha compares his body to an old cart. [Buddha/Biography] [Pain]

Suttas: MN 35.5; AN 10.67: The Buddha stretches his back.