Anointing of the Sick or 'Extreme Unction' is a true sacrament instituted by Christ and proclaimed by St. James. It is administered by anointing with blessed oil accompanied by prayer. Only a priest can validly administer it. It can be received by any baptized person to bring spiritual and even physical strength during an illness, especially near the time of death. It is most likely one of the last sacraments one will receive.