Thinking during the day and dreaming at night, because you have been concerned about grandma's health, you had a dream that grandma died. Duke Zhou said: If the grandmother in the dream has passed away, it indicates that life may change, so be careful in the future.
Psychological explanation of dreams: Dreams are spontaneous psychological activities at a certain stage of human consciousness during sleep. In this kind of psychological activity, the whole process of individual physical and mental changes is called dreaming. Dreams are only the image activities of deep cells in the cerebral cortex during sleep due to internal and external stimuli, which have no practical significance.