Brighid's Cross was a symbol derived from ancient solar symbols known from early times in Europe. There were several regional forms but none resemble the classic Christian cross. The crosses were made from straw, sheaves of grain, rushes, or grass, depending on the region of origin. They were hung in the house and farm buildings as protection against illness and other misfortune.
In the Scottish Highlands, women also made Brighid crosses before a wedding and placed one in the mattress of the marriage bed to ensure fertility.