What do you mean by 10 (water) and 14 (fire) in the Book of Changes?

In the Book of Changes, the sky grid 10 (water) is fierce, and the earth grid 14 (fire) is fierce, which means that the surname grid 10 in the Book of Changes means that the five elements and water are unlucky, and the nomenclature 14 means that the five elements and fire are unlucky. The Book of Changes is an ancient classic that explains the changes of everything in the world and a profound dialectical philosophical work. Tian Ge is one of the five grids, which is the surname grid. In the name science, the five elements represented by numbers are as follows: 1, 2 is wood, 3, 4 is fire, 5, 6 is earth, 7, 8 is gold, 9, 10 is water. Toponymy is a jurisprudence term, which is one of five situations. Fierce: unlucky, evil, unlucky, unfortunate, ferocious and cruel. Therefore, in the Book of Changes, 10 (water) is fierce, and 14 (fire) is fierce, which means that the surname 10 in the Book of Changes represents five acts of water, and the naming method 14 represents five acts of fire is unlucky.