The high priest is the chief of all the priests; he should be anointed and invested with the priestly garments; but if the sacred oil were not obtainable, investiture with the additional four garments is regarded as sufficient. A high priest so invested is known as merubbeh begadim. This investiture consists of arraying him in the eight pieces of dress and in removing them again on eight successive days, though (the anointing and) the investiture on the first day suffices to qualify him for the functions