Please help me to see what kind of bird this is. It flew to my house. I think I'm hurt. I'm getting married in a few days. Is there a moral?

The white-waisted swift is a symbol of good feng shui and good luck, and it is the longevity of the Buddha's paradise. White-waisted Swift (Apus pacificus) has dark brown wings and tail, light-colored feather edges, low back, slightly shiny feathers from top to bottom, nearly white feather edges, white waist, thin dark brown feather trunk, white chin and throat, and thin dark brown feather thousand lines. I like flying back and forth over my habitat in groups, often in groups. Flying fast, often flying and screaming, with a sharp and monosyllabic voice. Feeding on various insects, the main species are leafhoppers, wasps, wasps, midges, syrphids, parasitic flies, flies, mosquitoes, spiders, ephemera and so on. Hunting in flight.