नागप्रतिमायामन्तश्छन्नायां चैत्यच्छिद्रे वल्मीकच्छिद्रे वा सर्पदर्शनमाहारेण प्रतिबद्धसंज्ञं कृत्वा श्रद्दधानानां दर्शयेत् ॥ कZ_०५.२.४३ ॥
nāgapratimāyām antaśchannāyāṃ caityacchidre valmīkacchidre vā sarpadarśanam āhāreṇa pratibaddhasaṃjñaṃ kṛtvā śraddadhānānāṃ darśayet ।
ໂດຍຊ່ອນຮູບປັ້ນນາກໄວ້ຂ້າງໃນ, ທີ່ຮູເປີດຂອງສານບູຊາ ຫຼືຮູຂອງຈອມປວກ, ເຂົາຄວນຈັດໃຫ້ເຫັນງູໂດຍຝຶກໃຫ້ມັນຕອບສະໜອງຕໍ່ສັນຍານອາຫານ ແລະສະແດງໃຫ້ຜູ້ທີ່ເຊື່ອງ່າຍເຫັນ.
Classical conditioning: train an animal to appear on cue (food), then frame the event as supernatural.
Such sites are culturally associated with serpents and sanctity, increasing plausibility and reducing scrutiny.