How to interpret the lyrics of the song "Lost Happy Pig"?

The Lost Happy Pig is a song sung by Jiang Yuyang. The lyrics express the feeling of loneliness and helplessness after lovelorn. The "pig" in the lyrics refers to the person who has lost happiness, happiness refers to love, loss means loss, and the "pig" symbolizes the person who feels lonely and helpless. The theme of the whole song is to express that a person feels extremely lonely and helpless after falling in love and needs to seek comfort and support.