Why is Guan Tong's calligraphy of writing Fu characters representative and valuable for collection?

Guan Tong wrote blessings and sent them all over the Great Wall, Mount Tai, Huangshan, Wutai Mountain and other countries. The 300-year-old royal cultural heritage and the artistic monuments that go down in history make Guan Tong's Fushou calligraphy works a symbol of good fortune and wealth, which has been handed down from generation to generation and is called an unlucky "heirloom".