Conversation so far:
how did the program help Bll W.?
He then had the sensation of a bright light, a feeling of ecstasy, and a new serenity.
He never drank again for the remainder of his life.
how long ws he in the program?
CANNOTANSWER.

Question: what did Bill accomplish while in the spirtual program?
Self-contained rewrite: what did Bll W. accomplish while in the spiritual program for recovery?