My past had numerous psychiatrist, psych ward and suicide attempts for years, I found the words "restored to sanity" almost an unattainable condition.
I took the word "could" as having the ability to do so, not "maybe yes, maybe no". I couldn't commit to the long recovery road ahead if it was a "crap shoot".
I held firmly to the phrase "could, and would if he were sought"... and I started seeking.
So far it's worked since '89..
Wishing you all the best.
Bob R.