Tirukkural 155: Possession of Patience

Who wreak their wrath as worthless are despised; Who patiently forbear as gold are prized

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