What are the benefits of associating with a Sadguru or saint, according to the provided teachings?

As explained in Chapter 18, the company of a Sadguru is described as 'blessed, blessed,' with greatness that is hard to describe. Association with saints has profound effects on a disciple. It can steady a restless mind and attach it to the feet of Hari. By the Guru's grace, worldly desires vanish, and one may even speak of knowledge in their sleep. Wisdom and renunciation are said to come into one's hands like twin fruits. The text also states that through service to saints and love for them, the Guru, like a wish-fulfilling tree, removes all exhaustion and washes away sins.