Though suggestive of motifs from quite a few traditions (the Byzantine mandorla, the wings of cherubim above the Ark of the Covenant, the sheltering wings on Egyptian canopic urns), the shape may be summed up, Based on Calatrava, via the impression of a bird released from a child’s fingers. https://manuelmdxoi.tribunablog.com/advantages-of-hiring-certified-roofing-professionals-an-overview-36266763