Read it through once

The origin of at least one of the details of a Parsee funeral is not now known—the presence of the dog. Before a corpse is borne from the house of mourning it must be uncovered and exposed to the gaze of a dog; a dog must also be led in the rear of the funeral. Mr. Nusserwanjee Byramjee, Secretary to the Parsee Punchayet, said that these formalities had once had a meaning and a reason for their institution, but that they were survivals whose origin none could now account for. Custom and tradition continue them in force, antiquity hallows them. It is thought that in ancient times in Persia the dog was a sacred animal and could guide souls to heaven; also that his eye had the power of purifying objects which had been contaminated by the touch of the dead; and that hence his presence with the funeral cortege provides an ever-applicable remedy in case of need.