Editing Deveikut (Spiritual Attachment) (section)

== Its Nature ==
Deveikut is an external connection between two things, as it is written "as the belt clings to a person's waist," where the belt clings to the person's exterior (unlike hitkashrut, which is an internal connection)<ref>Biurei HaZohar from the Mitteler Rebbe on Parshas Terumah 49a, The maamar "L'Olam Yehei Adam" from 5670 (1910), The maamar "Posach Rabbi Shimon" from 5734 (1974).</ref>.

Deveikut in service from '''below''' to above is work in the externality of the heart, which is work based on reason and knowledge, and it is contemplation of divinity clothed in worlds. However In its drawing down from '''above''' to below, it is the drawing down of Infinite Light in an encompassing manner, and it is - generally - the drawing down that occurs through the fulfillment of mitzvot (as opposed to the drawing down through Torah study, which is an internal drawing down).

In Deveikut itself, there are two levels - where the thing is a reality unto itself but is attached to the second thing (in this way the vessels are attached to the Infinite Light), and there is a Deveikut where the two things are united in essential unity (in this way the lights are attached, and since light is an extension and revelation outside of essence, its unity is also called Deveikut).