What does Chapter 10 describe as the simplest and best spiritual practice (Sadhana), and what are its results?

In Chapter 10, the simplest and most effective spiritual practice, or Sadhana, is identified as remembering the Guru with a heart full of love. This method is praised as "the best of all means" because it costs nothing and requires little effort, yet it yields immense spiritual rewards. According to chunk 0, the primary result of this constant remembrance is that the "knot of birth and death is untied," signifying liberation from the cycle of reincarnation. The chapter encourages devotees to engage in this practice every moment, promising that through this simple act of devotion, "great fruit is obtained, and everything comes easily into one's hands."