Based on the teachings in Chapter 50, what is considered the 'supreme attainment' for a devotee, and how does this relate to the concept of liberation?

According to the concluding prayer in Chapter 50, the 'supreme attainment' for a devotee is not the traditional forms of liberation but something more direct and heartfelt. The author explicitly states, 'The four types of liberation like Salokata—we have no desire for them.' Instead, the highest goal is to have 'steady devotion to Sai' be 'firmly attached' to one's being. This chapter offers an advanced spiritual perspective, suggesting that the pursuit of liberation may be secondary. It posits that 'we were never bound in the first place,' and therefore the true path to a pure heart is simply the 'awakening of devotion to the Saint,' which is presented as the ultimate achievement.