Saint Basava

Basava is a Veerasaiva saint

Basavayya is the one who popularized and regularized the Veerasaiva sect in Karnataka. He worships his Ishtalinga which initiated Veerasaivites wear on their body.

Image of Satguru Sivaya Subramuniyaswami
A satguru is needed because the mind is so cunning and the ego is a self-perpetuating mechanism. It is he who inspires, assists, guides and impels the shishya toward the Self of himself.
—Gurudeva