 He is most notable as being the recipient of the Directa Decretal, written by Pope Siricius in February 385 AD.It took the form of a long letter to Himerius replying to the bishop's requests on various subjects sent several months earlier to Pope Damasus I.It became the first of a series of documents published by the Magisterium that claimed apostolic origin for clerical celibacy and reminded ministers of the altar of the perpetual continence required of them.