The Shanti Mantras or "Peace Mantras" are Hindu prayers for Peace (Shanti) from the Vedas. Generally they are recited at the beginning and end of religious rituals and discourses. Shanti Mantras are found in Upanishads, where they are invoked in the beginning of some topics of Upanishads. They are supposed to calm the mind of reciter and environment around him/her. Reciting them is also believed to be removing any obstacles for the task being started. "Physical" or Adhi-Bhautika, "Divine" or Adhi-Daivika and "Internal" or Adhyaatmika