What is the big fish around Guanyin Bodhisattva?

* * * Dragon, clever fish. The big fish is one of the instruments around the legendary Guanyin Bodhisattva, also known as "* * * Dragon" and "Wisdom Fish". This big fish can follow the instructions of Guanyin Bodhisattva to help the victims at the bottom of the sea, and use its body to provide a safe shelter for people in distress to temporarily avoid storms and dangers.