In the context of Indian tradition and spirituality, Arghya (or Arghya-dan) is the ritualistic offering of water or other sacred liquids to a deity or a respected guest as a mark of honor and devotion. Most commonly associated with Surya Arghya, the practice involves pouring water from a copper vessel toward the Sun during sunrise or sunset, often accompanied by the chanting of mantras like the Gayatri Mantra.