I think the saying could be improved... e.g., there is no ONE right way... and from experience I know there is no ONE wrong way.

For some people who post here, a T showing any benevolence or caring would be the wrong way - for others, a T who does so would definitely be doing it the right way.

For some, a T's positive encouragement is motivating; for others, it would be received as patronizing (def wrong way!).

Clients can skip sessions, or lie, or hide things, I'd say that's a 'wrong way'; for my particular T, when I focus my attention on her she takes great exception to that, so for us that's a big time 'wrong way'.

if you try to be open & honest, to show T what is inside you (and sometimes that can be quite a challenge), you are doing it the right way. I'm wishing you the best in this journey!