Lughnasadh or Lughnasa (also known as Lammas amongst the English) is traditionally a Gaelic festival marking the beginning of the harvest season. It is held on 1 August, or about halfway between the summer solstice and autumn equinox. In recent centuries some of the celebrations have been shifted to the Sunday nearest this date.
Lughnasadh is one of the four Gaelic seasonal festivals, along with Samhain, Imbolc and Beltane. The festival itself is named after the god Lugh. It inspired great gatherings that included religious ceremonies, ritual athletic contests, feasting, matchmaking, and trading.
May your Lughnasadh be full of many blessings and your harvest be bountiful!