Katha Phra Maha Kaccayana / Phra Sangkachai (Elder Kaccayana Homage)
คาถาบูชาพระมหากัจจายนะ / พระสังกัจจายน์เถระ (เอตทัคคะผู้เลิศในการอธิบายธรรมย่อให้พิสดาร)
Honors Phra Maha Kaccayana (Thai: Phra Sangkachai), declared by the Buddha in the Anguttara Nikaya (AN 1.196) as foremost among bhikkhus in analyzing brief doctrinal statements in full detail (Sankhittena Bhasitassa Vittharena Atthang Vibhajantanang).
According to the Dhammapada Commentary (Soreyya Vatthu), Elder Kaccayana possessed golden-complexioned radiance like the Buddha; out of humility so laypeople would not confuse him with the Teacher, he manifested a rotund form — which evolved into two linked Siamese iconographies: open-eyed Phra Sangkachai (doctrinal teaching) and closed-eyed Phra Pidta (Nirodha-samapatti absorption).
Anguttara Nikaya 1.196 & Dhammapada Atthakatha (Soreyya Vatthu)
Chant Namo Tassa 3 times, followed by Kaccayana Mahathero 3 times.