Bird's nest symbolizes auspiciousness, and swallows represent auspiciousness and beauty. If swallows nest at home, they will also bring blessings to the main family. Bird's nest symbolizes loyalty. Swallow is monogamous, representing the love and happiness of husband and wife. Swallows represent auspiciousness and also have beautiful meanings. Therefore, the swallow is willing to come to the house as a guest, indicating that the main house is stable and peaceful.