Between the Ulam and the Altar is holier than it, in that [Kohanim] with blemishes or untrimmed hair may not enter there. The Heichal is holier than it, in that one whose hands and feet are unwashed may not enter there. The Holy of Holies is holier than they, in that no one may enter there except the Kohen Gadol on Yom Kippur at the time of the service. R’ Yose said: With regard to five matters [the area] between the Ulam and the Altar is on a par with the Heichal: That those with blemishes, or untrimmed hair, or those who have drunk wine, or with unwashed hands and feet, may not enter there, and they must remove themselves from [the area] between the Ulam and the Altar when the incense is burned.