Sandalphon is reffered to as the twin brother of Metatron. There are many reasons for this that will be touched on throughout this thread.
The name "Metatron" is derived from the latin word "Metator" which means "one who metes out or marks off a place, a divider or fixer of boundaries.
I have touched on how us a human beings represent Metatron...
(Check out this thread.... )
(the body is the Earth and the mind is the heavens, as above so below {this is explained by Danny Wilten's "Template of Man Documentary"})
So it is Metatron that measures or observes boundaryless matter and gives it form..
"Kabbalists say that the derivation of Sandalphon's name is composed of two parts: "Sandal" a still born embryo not yet distinguishable and "fon"(phon) the root form of the word "face" which together the words mean.. ->
So Sandalphon is matter in the process of becoming a form..Sandalphon can not have form unless his twin brother observes him.
Metatron(the measurer) gives form or boundary to Sandalphon(boundaryless matter)
In the Kabbalah, Metatron and Sandalphon represent two significant sephira on the tree of the life.
The form of boundaryless matter(Sandalphon) depends on the metator or observer(Metatron) The mind is infinite therefore matter can have take infinite form.
In simple terms..how you look at something is how it will be. Change your thoughts, you then change your world. To look at something without judgement is to see the infinity that it is.
Through the measuring of our observance we shape our reality.