Kiss Me with the Kisses of His Mouth

The Zohar says:

Rabbi Yitzchok began: "He should kiss me with the kisses of His mouth, etc." Knessesth Yisroel, i.e. the Schechina, says this verse. Why does it say, "Kiss me?" It should have said, "Love me!" It is teaching us that kisses are the connecting of one spirit (Ruach) to another. This is why kissing is done with the mouth, since the mouth is the source of the spirit. Kisses are given lovingly with the mouth, connecting spirit to spirit, which are never separate from one another.

The Zohar goes on to explain that the death of Neshika (kissing, the death given to Moshe, Aharon and Miriam) is one in which the person's spirit connects to the spirit of God and remains eternally connected, even posthumously.
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