oath augmentation challenge

Here is the source of all the symbols utilized in todays code. 

I have not solved it yet but I am working on it.

I have a few theories about which ones are vowels but nothing solid yet

Can you help? 

EDIT: I HAVE BECOME THE THIRD PERSON TO SOLVE ALL THE RIDDLES IN THEIR ENTIRETY. IF YOU ARE STUCK MESSAGE ME OFF ANON AND I WILL GIVE YOU A TINY HINT