'Who is doing the helping if not the self?' Listener question

My husband's job is to teach people to live in the now. He has helped hundreds of ordinary people that have been referred by mental health charities and the NHS etc. Some of these people get better after a lifetime of anxiety. He takes them straight to the experience of their true nature and they get it! He lives in the now too and doesn't worry about anything. Ever. You could say he is free. 

We often have discussions on the topic of the self. His 'argument 'is that if the self is illusory and has no free will /personal agency then who is it that is helping these people get better and how come these separate selves are improving?  

He feels that this is not random ie. it's just what's happening - and finds the approach that some non-duality teachers ( Jim et al) take would not help these people out of their suffering in the same way that Mike's approach seems to.

These teachers sometimes say "there is nothing you can do '' to help anyone. It's just what it is and yet 5 people have been guided to their true nature and awareness in the last week! 

Mike knows that he is following his internal guidance system at an individuated level of the all that is, but this doesn't seem random to him. 

This question is a bit unwieldy. Do you see where he is coming from?