If you saw a spider in a mosque in your dream: Events that will require you to take responsibility may develop, you should stay away from risky jobs. Seeing a spider in a mosque in a dream, according to some scholars, this dream is very auspicious and it means that the person who sees it is under protection, living a good life and leading a peaceful life in the hereafter and in this world. Seeing and buying a spider in a mosque in a dream means experiencing some problems.