I know what u mean when he relapses it hurts. Tell him just keep trying and listen to what people suggest.
And not to be put off, he will need to start meditating as well, and praying, but he just has to pray to a higher power, it doesn’t have to be God.
Some people have the universe and law of attraction, some have nature, and some have family members.
So for example mine is God, and Ill get on my knees every morning and say.. God thank you for another day clean and soba, give me the strength be stronger and guide me on the right path, and to avoid bad situations ect ect..
I know it sounds cheesy for some, but this cost nothing and you don’t spend 100s a week or feel suicidal from it. And it helps.
Also the more meetings he does and connects, if he does relapse he will beat himself up more because of how far he’s come and the work he has put in. But this makes him stronger next time. If this makes sence.