Fish Pond Fairy

The mountain is not high, but it is famous if there are immortals. If the water is not deep, if there is a dragon, it will be spiritual. There is a school of fish in the fish pond, and he is determined to cultivate himself and become an immortal. Caviar? That's the elixir! Isinglass? That's the spiritual root! A recipe that was thrown into the water? That's a magical secret! Did the fisherman make a nest on the shore? That's a chance from heaven! There is a fishhook hanging from the sky, it must be the ladder to immortality! Person: What am I, an immortal from the upper world?