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The beehive was a symbol of harmony, cooperation, and work for the early pioneers of the Church. Brigham Young used the symbol to inspire early Church members to work together to transform the barren Salt Lake Valley into a beautiful and thriving community.

https://www.churchofjesuschrist.org/church/news/viewpoint-lesson-of-the-bees?lang=eng#:~:text=The%20beehive%20was%20a%20symbol,a%20beautiful%20and%20thriving%20community.

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The beehive is one of the most common and enduring symbols within Mormonism, used ubiquitously. For example, it appears in publications, logos, architecture, and as the name of one of the Young Women’s classes. It is an official emblem for the state of Utah, where it is used on the state seal, the state flag, highway signs, historic money, police cars, and more. The beehive is used widely in popular culture and names of businesses in Utah. Today the beehive is seen as a symbol of industry, teamwork, and unity. But evidence shows that Church leaders in the late 1840s had a different concept in mind. For them, the beehive represented the kingdom of God. This photo essay presents uses of the beehive in its historical and sacred settings in Mormonism.

https://byustudies.byu.edu/article/the-symbolism-of-the-beehive-in-latter-day-saint-tradition/