Para or Normal?

Paranormal Religious Studies show that some Saints are incorruptibles. That their bodies arent decaying like that of Saint Bernadette who died in 1879, when the average human body decays within 3-4 days. Is it their spirits connecting as messengers between the living and the dead? Or is it perhaps a miracle that some Saints are that of high importance? Or could it just be another deal that the "term" -Science which is mostly hated when involved in Religion- will make God's work easily undone?