To dream of crying in Islam generally means distress and sorrow unless it is to repent of one's sins.
Lamenting or crying in a dream means distress, sorrow and stress. If such lamentation or weeping is motivated by fear of
Almighty God, it means that salvation and joy will follow. Laughter is just the opposite, these are two symbols that are quite simple to interpret since they directly say the meaning.
Laughter always indicates something positive
Laughter in dreams always indicates joy, pleasure, but it must be frank and sincere laughter. If we laugh out loud, that means we're going to cry. Laughing at a joke indicates dishonesty. If one dreams that a deceased person starts laughing, it means paradise for him and his reward in the afterlife.