James O'Leary, The Most Ancient Lives of Saint Patrick… (1874)
“ So might the worshippers of Christ, beholding the sign of life, understand that a servant of the faith of the cross was there buried, and so might they not delay to offer unto the Creator their prayers for his soul. Truly, a pious custom, and worthy is it of general observance that all who were baptized in the death of Christ, and are dead in his faith, should, when buried, have on them or near them the ensign of the death of Him. ”
