Have you tried making the doll? I found this tutorial on Pinterest
It was called Brídeóg and was traditional around Imbolc.
The girls would carry it in procession while singing a hymn to Brigid. All wore white with their hair unbound as a symbol of purity and youth. They visited every house in the area, where they received either food or more decoration for the Brídeóg.
Afterwards, they feasted in a house with the Brídeóg set in a place of honour, and put it to bed with lullabies. In the late 17th century, Catholic families in the Hebrides would make a bed for the Brídeóg out of a basket. - Source