And it is our world, the Human World compounded of elements, of which nothing is possible to remain in one state, nor is its survival or permanence [possible].

And the Masters (Mawali) have alerted to this by their saying:

"Our world is the World of Acknowledgment (Iqrar) and Response (Ijaba)."

And our Master Al-Sadiq (Exalted be His Might) said:

"The difficult, the exceptionally difficult (Al-Sa'b al-Mustas'ab) is the knowledge of the Manifestation of the Deity in Humanity."

And by that, he intended the knowledge of the Subtle Simple—in which there is no composition¹—[distinct] from the Dense Compound, the Transmuting/Impossible (Mustahil), for which there is no stability of survival in this world.

And he said:

"Our bodies were created from the Clay of 'Illiyyin, and the spirits of our Shia were created from the surplus of that Clay."

So it became known that their "bodies" were created from the Pure Lights which are suitable for the spirits of the Believers to be [made] from.

And he said:

"Indeed, Allah created the spirits of the Believers from a single Light."