Hi Chris,
OK, breathe in ... and become really nervous now. I go on to say that not only one's own intentions and motivations are to be known, but also one's own stuff, behavioral patterns and garbage that is

IMO it is of utmost importance for a true healer in any system to know him/herself very well. Projections are happening even then, but at least the case taker is aware of what is his/hers and what belongs to the patient ! I dare say that prejudice in Hahnemann's terminology is not only the intended prejudice, but also the unintended ! (i.e. projections)
To know yourself well, soul searching and continuous personal growth is needed - the work is never done ! - even if you're right at one time or another

Claudia