The Virgin Mary told Richeldis to take the measurements of this house and build another one just like it in Walsingham. It would be a place where people could come to honour her and her Son, remembering especially the mystery of the Annunciation and Mary's joyful 'yes' to conceiving the Saviour.
The late eleventh century and all through the twelfth and thirteenth centuries was the era of the crusades, which saw a growing interest in the sites consecrated by the human presence of Jesus in the Holy Land. But now pilgrims need not go so far; in England itself there was a 'new Nazareth' built by one of their own countrywomen.
The actual house from Nazareth was moved – perhaps even miraculously – to Loreto, and we find that the measurements of the house in Loreto and the house in Walsingham are the same.
Why venerate a house? Because it reminds us that the Word-made-Flesh lived as Man with mankind.
O God, who, through the mystery of the Word made flesh, didst in thy mercy sanctify the house of the Blessed Virgin Mary: do thou grant that we may keep aloof from the tabernacle of sinners, and become worthy indwellers of thy house; through Jesus Christ thy Son our Lord, who liveth and reigneth with thee, in the unity of the Holy Spirit, ever one God, world without end. Amen.