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In page Basava:

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Basava advocated the wearing of Ishtalinga, a necklace with pendant that contains a small Shiva linga.[1] He was driven by his realization; in one of his Vachanas he says Arive Guru, which means one's own awareness is his/her teacher. Many contemporary Vachanakaras (people who have scripted Vachanas) have described him as Swayankrita Sahaja, which means "self-made".