[Pramāṇa](https://indike.org/pramana/) › [Studies](https://indike.org/pramana/ins) › [Reference works](https://indike.org/pramana/ins.reference) › [Puranic Encyclopaedia: A Comprehensive Dictionary with Special Reference to the Epic and Puranic Literature](https://indike.org/pramana/ins.reference.mani-1975) › c8.1617 # Puranic Encyclopaedia: A Comprehensive Dictionary with Special Reference to the Epic and Puranic Literature c8.1617 Purāṇic Encyclopaedia: A Comprehensive Dictionary with Special Reference to the Epic and Purāṇic Literature c8.1617 - **Language:** English ### [c8.1617](https://indike.org/pramana/ins.reference.mani-1975.c8.1617) The sound "Om" is called "Praṇava" or "Brahman." All mantras begin with the sound 'Om'. Because of its sacredness, Śūdras and other low-caste people are not allowed to utter it or to hear it. They may pronounce it only as "Aum." This sound includes all that has happened and all that is to happen. (Māṇḍūkyopaniṣad). OMPATU. (Malayālam word for nine). Nine grahas (nine planets). Sun, Moon, Mars, Budha (Mercury), Guru (Jupiter), Śukra (Venus), Śani (Saturn), Rāhu and Ketu. - [Previous: c8.1616](https://indike.org/pramana/ins.reference.mani-1975.c8.1616) - [Next: c8.1618](https://indike.org/pramana/ins.reference.mani-1975.c8.1618) - [Up: c8](https://indike.org/pramana/ins.reference.mani-1975.c8) ## Cites (1) - [Māṇḍūkyopaniṣad](https://indike.org/pramana/in.veda.upanisad.mukhya.mandukya) — Sanskrit --- Source: [https://indike.org/pramana/ins.reference.mani-1975.c8.1617](https://indike.org/pramana/ins.reference.mani-1975.c8.1617) · Pramāṇa