What is a gobbledygook?

"The Classic of Simple Morality": "When people offer Heluo and ask what it is, it is called a heavenly book." Taken together, the word "Heluo" means "River Map" and "Luoshu". Someone presented a picture of the river and a letter of Luo, [1] and asked what it was. Taihao Fuxi said, "The Book of Heaven". Since then, the ancestor Fuxi has been inspired to create a complete set of dragon soul characters. The nine-pole and eight-array pictures, simple Tao Te Ching and infinite Xuan Yi Gong written by these dragon soul characters are collectively called heavenly books.