What is the proper way to use Udi according to the Satcharita, and what are its spiritual effects?

According to chapter 33 of the Shri Sai Satcharita, Udi should be used as part of a daily practice for spiritual and physical well-being. The text suggests that after completing one's morning face-washing and bathing, one should apply the Udi. It also mentions drinking the Udi along with Charanteerth. Beyond physical healing, this chapter emphasizes profound spiritual benefits. Using Udi with faith is said to lead to purification, the complete removal of sins, the attainment of a full lifespan, and a state of everlasting happiness and contentment. The text refers to it as a "feast of self-bliss," indicating its power to grant inner peace.