>>32868293Tiferet is the force that integrates the Sefira of Chesed ("compassion") and Gevurah ("Strength, or Judgment (din)"). These two forces are, respectively, expansive (giving) and restrictive (receiving). Either of them without the other could not manifest the flow of Divine energy; they must be balanced in perfect proportion by balancing compassion with discipline. This balance can be seen in the role of Tiferet, wherein the conflicting forces are harmonized, and creation flowers forth.
Tiferet is unique amongst the Sephirot as it is connected to all the other Sephirot (except Malkuth) via the subjective paths, be they conscious or less conscious. Its position down the center between Keter and Yesod indicates to many Kabbalists that it is somewhat of a "converting" Sephirot between form (Yesod) and force (Keter). In other words, all crossing over the middle path via Tiferet results in a reversed polarity. The law of conservation, valid both for energy and mass, tends to corroborate this – in all cases of energy transmutation, as it may happen in the transmission of gifts and goods from parents to their children, a sacrifice is necessary so a new form may be born.