Kabbalah Of Yichudim - Divine Meditations
Yichud means unification and comes from the root word ××× unified or one. A Yichud is a type of a kavana - special Kabbalistic intention.
Man's role consists in the restoration of the original harmony that was destroyed with the breaking of the Vessels; the unification of the name of G-d.
In other words, according to Kabbalah, our role is to achieve the “Tikun Olam”, rectifying the world through the spiritual intention of binding the spiritual and the physical realities as one.
The Arizal says that our role is to restore the connection between the two facets of G-d the Yud+Hey/ Vav +Hey, the intellectual and emotional parts of G-d’s names thereby uniting the above nature and nature realms.
This reuniting process are known as Yechidim, "Unifications". A great many yechidim were taught. All involve the meditative contemplation of the letters of the various names of G-d.
Israel, Torah and Gād are bound together in complete unity, as the Zohar states...