Catharine Arnold said this quote

The faithful clamoured to be buried alongside the martyrs, as close as possible to the venerable remains, a custom which, in anthropological terms, recalls Neolithic beliefs that certain human remains possessed supernatural properties. It was believed that canonized saints did not rot, like lesser mortals, but that their corpses were miraculously preserved and emanated an odour of sanctity, a sweet, floral smell, for years after death. In forensic terms, such preservation is likely to be a result of natural mummification in hot, dry conditions.