Celtic Reconstructionists believe it is important to lay aside elements of ancient Celtic cultures which they consider inappropriate practices in a modern society. CRs attempt to find ethical ways of integrating historical findings and research with the activities of daily life. Many CRs view each act of daily life as a form of ritual, accompanying daily acts of purification and protection with traditional prayers and songs from sources such as the Scottish Gaelic "Carmina Gadelica" or manuscript collections of ancient Irish or Welsh poetry. Celebratory, community rituals are usually based on community festivals as recorded in folklore collections by authors such as F. Marian McNeill, Kevin Danaher or John Gregorson Campbell. These celebrations often involve bonfires, dances, songs, divination and children's games. More formal or mystical rituals are often based on traditional techniques of interacting with the Otherworld, such as the act of making offerings of food, drink and art to the spirits of the land, ancestral spirits, and the Celtic deities. CRs give offerings to the spirits throughout the year, but at Samhain, more elaborate offerings are made to specific deities and ancestors.