these five forms are linked with various attributes. The overall meaning of these associations is summarized by Stella Kramrisch, " According to the Pañcabrahma Upanishad: In the hymn of Manikkavacakar's Thiruvasagam, he testifies that at Nataraja Temple, Chidambaram had, by the pre-Chola period, an abstract or 'cosmic' symbolism linked to five elements (Pancha Bhoota) including ether. Nataraja is a significant visual interpretation of Brahman and a dance posture of Shiva. Sharada Srinivasan notes that, Nataraja is described as Satcitananda or "Being, Consciousness and Bliss" in the Shaiva Siddhanta text Kunchitangrim Bhaje, resembling the Advaita doctrine, or "abstract monism," of Adi Shankara, "which holds the individual Self (Jīvātman) and supream Self (Paramātmā) to be one," while "an earlier hymn to Nataraja by Manikkavachakar identifies him with the unitary supreme consciousness, by using Tamil word Or Unarve, rather than Sanskrit Chit." This may point to an "osmosis" of ideas in medieval India, states Srinivasan. Lingam The Linga Purana states, "Shiva is signless, without color, taste, smell, that is beyond word or touch, without quality, motionless and changeless". The source of the universe is the signless, and all of the universe is the manifested Linga, a union of unchanging Principles and the ever changing nature. The Linga Purana and Siva Gita texts builds on this foundation. Linga, states Alain Daniélou, means sign. It is an important concept in Hindu texts, wherein Linga is a manifested sign and nature of someone or something. It accompanies the concept of Brahman, which as invisible signless and existent Principle, is formless or linga-less. Shvetashvatara Upanishad states one of the three significations, the primary one, of Lingam as "the imperishable Purusha", the absolute reality, where says the linga as "sign", a mark that provides the existence of Brahman, thus the original meaning as "sign". Furthermore, it says "Shiva, the Supreme Lord, has no liūga", liuga ( ) meaning Shiva is transcendent, beyond any characteristic and, specifically the sign of gender. Apart from anthropomorphic images of Shiva, he is also represented in aniconic form of a lingam. These are depicted in various designs. One common form is the shape of a vertical rounded column in the centre of a lipped, disk-shaped object, the yoni, symbolism for the goddess Shakti. In Shiva temples, the linga is typically present in its sanctum sanctorum and is the focus of votary offerings such as milk, water, flower petals, fruit, fresh leaves, and rice.