
One need not believe, i. e. subscribe to, the doctrine of the Virgin Birth in order to understand the power that lies behind the doctrine.
First consider the time of year. The old is past. Future time the unknown, lies before us. It has a virginal. Our time belongs to us to shape.
The child represents ourselves in oour new beginnings. For some, it does imply laying aside old habits which limit growth. We thus free ourselves to cultivate better habits that foster improved well being.
All this applies whether on accepts the historical rality of the Birth Of Jesus or not.
Other points.
This particular statue by Bernini, bears some resemblance to the East Asian Quan Yin which symbolize mercy.
A friend of mine once asked why people from Asia did not have apparitions of Mary. Easy! Nothing in their culture has predisposed them to see Mary: Quan Yin yes.