If another person has nightmares. Usually, you will be scared of desires, or you might be petrified of some unknown detail even throughout the day, then chant this mantra 11 moments just before going to mattress and rest with a few claps. त्वं रवे तारय स्वास्मानस्मात्संसार सागरात। The Hanuman mantra https://isitedirectory.com/listings13222783/everything-about-hanuman-chalisa