This speaks about the building of the general soul: about the forces, intentions, and attributes of which it is made. The structure of the general soul reminds us of the structure of an atom, where only those parts that can withstand the radiation of the nucleus, the radiation of bestowal, can be close to the nucleus. It is according to this principle that the camps gather and are classified.
It says that it is forbidden to come close to the Tabernacle since one can die (“the stranger that approaches will die”). This means that your vessels, your desires, may not be able to hold on, and so become egoistic, causing you to die spiritually.
Comment: But all of humanity accepts these words as rigid laws and a threat of physical death.
Answer: The laws of nature are indeed rigid because the system that governs the world is very tough and uncompromising, but everyone still follows the stream of goodness.
From KabTV’s “Secrets of the Eternal Book” 12/31/14