Kabbalah su Levitico 6:5

(36) And know that the reality of happiness is that it brings about connection, that it is impossible that the weak ones would come close to on high if there was no happiness among them, which makes the ones on high desire closeness with the weaker ones, and so happiness of the weak one has to be included in the weak one's ascent, so that the weak one will be illuminated by it. And this is "korban lHashem" [sacrifice/getting close] that the explanation in the Tikkunim (Tikkunei Zohar 105b, seems a different version than the current printed one) that they said, and these are their words: "And when they came to sacrifice, father with mother, son with daughter, each one with their corresponding pair, the Yud above would be with the Hey, the Hey below with the Vav, that was the Korban Oleh VeYored [a sacrifice/coming close that goes up and down], and in that same moment "the bones came together, bone to matching bone" (Ezek. 37:7) [etzem/bone/essence] and at the end of his words, when "and the fire on the altar shall be kept burning" (Lev. 6:5) - up to here are the words of our issue.