It is famous shia supplication, and we took translation from known shia site, duas.org.

You can see them wrote:

And by Thy own self that shall endure forever after all things have vanished

But in Arabic text, it is written:

And by Your Face that shall endure forever after all things have vanished

They have changed word (face) to (Thy own self)

You can see them wrote:

And by the light of Thy countenance which illuminates everything

But more clear and correct translation from Arabic would be:

And by the light of Your Face which illuminates everything

Just because rafidah don’t accept such attribute of Allah like Face, then decided to alternate text of dua, and changed words of supplication in one place, and used not so clear meaning in other one.