Positive Mitzvah 107: Impurity of coming in contact with a Dead Body
Numbers 19:11 "He that touches the dead body of any man shall be unclean"

Contact with a dead body makes a person impure.

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Each path contains what the other is missing: When G-dliness is everything, even the darkness is included. But the world is left untransformed, because there is no world -- only G-dliness. When everything is G-dliness, you transform the world by digging away the darkness to find the sparks of G-dliness. But the darkness remains outside. The path of Jacob is to find That Which Is Everything within each thing, and to bring That Which Is Beyond All Things to dwell within each thing. Jacob knows a G-d who is at once both beyond and within. To Jacob, darkness is also light.

From: Bringing Heaven Down to Earth by Tzvi Freeman - tzvif@aol.com