The Account of Mohinī
Mohinī-upākhyāna
गतिं धर्मस्यातिसूक्ष्मां लोककल्याणकारिणीम् । अनया निकषाश्यांग्या परीक्ष्य स्वर्णभूषणः ॥ ३९ ॥
gatiṃ dharmasyātisūkṣmāṃ lokakalyāṇakāriṇīm | anayā nikaṣāśyāṃgyā parīkṣya svarṇabhūṣaṇaḥ || 39 ||
วิถีแห่งธรรมะละเอียดลึกยิ่งนัก แต่ยังเกื้อกูลสวัสดิ์แก่โลก ดังทองคำประดับย่อมทดสอบด้วยหินทดสอบ ฉันใด ธรรมะก็ควรพิจารณาด้วย (มาตราวัดแห่งปัญญา) นี้ฉันนั้น
Suta (narrating; teaching framed in Narada Purana’s dharma discourse)
Vrata: none
Rasa: {"primary_rasa":"shanta","secondary_rasa":"none","emotional_journey":"A sober, reflective mood: dharma is subtle, so one must test and verify it carefully, like gold on a touchstone."}
It teaches that dharma is subtle and must be verified through careful discernment, with the benchmark being whether it truly promotes the welfare of beings (lokakalyāṇa).
By implying that genuine dharma (including devotional practice) should be tested for purity and real benefit—humility, compassion, and upliftment—rather than mere outward display.
Not a specific Vedāṅga technique, but a nyāya-style principle of examination (parīkṣā): like assaying gold, one should critically evaluate actions and teachings for authenticity and beneficial outcomes.