I am being troubled by nightmares. According to the teachings, what did a Sai devotee recommend for a man in Bandra with a similar problem?

Chapter 35 details a very similar situation and the remedy that was provided. A gentleman from Bandra was plagued by nightly nightmares where his deceased father would wake him. A Sai devotee advised him to turn to Sai Baba's grace through the use of Udi. The specific instructions given were to apply a small amount of the sacred ash to his forehead before going to sleep. Additionally, he was told to tie a packet of Udi and place it under his pillow. Crucially, he was instructed to "remember Shri Sai in your mind" and maintain devotion. The account confirms this remedy was immediately effective, as the man fell into a deep sleep and the bad dreams were erased.