3,885. The Holiest Location of Them All
Hilchos Beis HaBechirah 7:21
The Heichal is holier than the preceding area; only kohanim who have sanctified their hands and feet may enter.
Hilchos Beis HaBechirah 7:22
The Holy of Holies is holier still. Only the Kohein Gadol may enter there, when performing the service on Yom Kippur.
