Arghya — Honoring the Divine Guest
Arghya ('that which is worthy of honor, a gift of respect'; from argh = 'to be worth') is water presented to Bhagavān for the ritual washing of His hands — part of the guest-honor cluster of upacāras within the ṣoḍaśopacāra pūjā. Alongside pādya (water for feet) and ācamanīyam (water for sipping), arghya forms the triple water-offering that mirrors the ancient Indian tradition of honoring a distinguished guest (mahāpūruṣa).
In ancient Indian hospitality (atithi-pūjā), welcoming a guest involved offering water for feet (pādya), water for hands (arghya), and water for sipping (ācamanīyam) — three distinct acts of physical care that together communicated the host's respect and readiness to serve. The ṣoḍaśopacāra pūjā adapts this entire framework to Bhagavān, treating the Divine as the most honored guest imaginable — the para-brahman who has condescended to dwell within reach of the devotee.
Theologically, the arghya offering emphasizes Bhagavān's saulabhya (accessibility) — the willingness of the supreme Lord to accept the simple, humble service of water from His devotees. It also expresses the principle that tiruvārādhanam (home worship) is modeled on the ideal of treating Bhagavān as the greatest possible guest (mahā-atithi) — with the full complement of traditional guest-honor rites transformed into devotional service.
The water used for arghya is typically scented with flowers, tulasī leaves, or sandalwood — elevating it from ordinary water to a sacred substance fit for Bhagavān's reception.