Another legend is that once, while Vishnu and Brahma contested for superiority, Shiva appeared as a flame, and challenged them to find his source. Brahma took the form of a swan, and flew to the sky to see the top of the flame, while Vishnu became the boar Varaha, and sought its base. The scene is called lingothbava, and is represented in the western wall at the sanctum of most Shiva temples. Neither Brahma nor Vishnu could find the source, and while Vishnu conceded his defeat, Brahma lied and said he had found the pinnacle. In punishment, Shiva ordained that Brahma would never have temples on earth in his worship. Thazhambu, the flower which was helping Brahma, was also punished for lying about Shiva. The flower was cursed that it won't be used during the worship of Shiva, but an exception was given during Shivaratri festival in the temple.