Can you describe the general benefits and proper daily use of Sai Baba's Udi as explained in the Satcharita?

Chapter 33 of the Shri Sai Satcharita details the glory and use of Udi, the sacred ash from Baba's dhuni. It is recommended that after one's morning face-washing and bathing, they should apply the Udi. It can also be consumed by drinking it with Charanteerth (holy water from the Guru's feet) for purification. The text describes several special qualities of the Udi, stating that consuming it will grant a full lifespan, completely remove sins, and ensure lasting happiness and contentment. Furthermore, it is said that anyone who discusses the glory of Udi with faith and feeling will experience the immediate removal of obstacles from their life.