You've started in a very good place. What struck you was the question, 'For whom is the person the problem?' Because usually the person is the one with the problem.  But now we're noticing that there is witnessing of the person and its problem; they are objects of perception, both of them.   What remains? What is it that is perceiving this?  First, before you answer, be the answer, don't report this answer. [[Mooji]]