Although it is the surface that gives diversity to the depth of forms, this diversity can still be best controlled from unity.
The ninth ambassador of Agni, opposite of the Seer of Odin's forces, examines the mastery of the students over the depth of the forms.

“He determines to what degree those practising are able to maintain unity so that it remains inexhaustible even in the course of time.
If those practising would lose the control over the unity of things, they would lose at once the mastery over the natural creative process of their game; for everything that is created flows from the uncreated, and perfect power over the world of growth is only being exercised from the uncreated.”

“Without their individual power over the uncreated the students could not produce any wind, water, wave, frost, nor ice.”

“You see how the ninth judge holds a shoe with the sign of cosmic silence towards the sky.
In his judgement he relies on the blessing of the god Widar - like the two who are practising when they use the forces of the giants.
The pure forces of the gods lie at the basis of the giants' forces and support them from within.
Therefore this ambassador is called ”Seer of Widar's forces in the realm of the mind.”