Remmember "Rajju Sarpa bhranti"(The illusion of rope and serpent)
In dim light things cannot be seen clearly(ignorance or Maya) a piece of rope(Rajju)can be mistaken to be a snake(Sarpa) and one can get all emotions, fear anxiety etc, associated with snake.The pangs of sorrow or excitement of happiness associated with worldly things are because of ignorance.Delusions disappear when one embraces wisdom.