Dīrgha-daṇḍa-namaskāra — The Full-Body Prostration
Dīrgha-daṇḍa-namaskāra (Sanskrit: dīrgha = long + daṇḍa = staff/straight + namaskāra = salutation; 'the long-staff salutation') is the sāṣṭāṅga-namaskāra — the complete eight-limbed prostration — where the body lies fully extended and straight like a staff (daṇḍa) on the ground before the deity or a revered person.
The Eight Points of Contact: The traditional sāṣṭāṅga involves eight parts of the body touching the ground: two feet, two knees, two hands, chest, and forehead — the entire body surrendered to the earth before the divine presence.
Meaning and Significance: Dīrgha-daṇḍa-namaskāra is the maximum physical expression of pārātanthriyam — the body itself assumes the position of total dependence and surrender. It is performed before the deity in the sanctum (garbhagṛha), before the Āchārya, and at the tombs (tāyar maṭam) of great saints. The act says with the whole body what the dvayam says with words.
In Āchārya Worship: In Anthimopāya Niṣṭhā, disciples are described as performing dīrgha-daṇḍa-namaskāra before great Āchāryas — an acknowledgement that the Āchārya is Bhagavān's own representative and the source of the disciple's liberation. The Āchārya's acceptance of this prostration is itself an act of grace.