A pearl can mean anything. It can mean wisdom, life and peace. Yet, it can also mean much more. It can mean beauty. It can be whatever you can think of. If the pearl is smooth, then it can resemble an egg or a ball. So, it can basically be a great object of power as well. Just let your mind think about what you think it is.
(If you want to know how this can be helpful, dragons of old age in Japan see pearls to be keys to wisdom, and people steal them to learn power of dragons or other worlds. Beauty because of how white a silky smooth, and perfect it is in your hand. Also an object of great power because of an old story I remembered said that a mystic was surronded by pearls that helped him focus on his magick.
