Atharvaveda describes the various incantations, rituals, and sanskaras.
Q. The initial phase of this Indian Philosophical school was introduced to and established the authority of Vedas. It emphasized reasoning and interpretation - justification for various Vedic rituals. In its later phase, it refuted ritual-centric philosophy and emphasized the philosophy of Upanishad.
In the context of Indian philosophical schools, which one of the following terms best applies to the above description?