Leviticus (Vayikra)ויקרא

Sacrifice as circuitry: korban comes from karov, to draw near — the offerings are read as a technology for moving light between worlds, later internalized as prayer ("the service of the heart"). The Omer-count (49 gates toward the 50th), the Holiness Code ("You shall be holy"), Yom Kippur's approach to the innermost room: the manual of nearness.