An udgātṛ is a specific type of priest in Vedic rituals, particularly significant during the yajna, or fire sacrifices. This priest is responsible for chanting the Udgītha, a collection of sacred hymns, which are recited to invoke divine presence and ensure the successful outcome of the rituals. The role of the udgātṛ is vital as it connects the human realm to the divine through sound and intention, making it an essential component of these sacred ceremonies.