1- Some hailevi are scary dreams created by the devil to make people sad. Like falling from a high place, being bitten by a dog.
These are baseless things. When a person sees such a dream, he/she should take refuge in God Almighty and not tell others about it.
2- These are the dreams that a person sees about things that he/she is important to when he/she is awake. These are insubstantial things, as they are the result of a deviance or a deviation from the temperament.
3- They are dreams that are considered as one of the forty-six parts of Prophethood. They are in the nature of a sign or warning from the divine, and some angels consider them from the Ummul-Book. They inspire the
souls of the sleeping people. (Ömer Nasuhi Bilmen)