You can assist the client in understanding the underlying cause of their illness and use healing energy to bring that issue to the surface. But the wonderful thing about spiritual healing is that the Divine already knows this to be the process. So even if you don't feel comfortable explaining your perceptions, then that's fine too. Just let healing energy do what it needs to do, and if the Divine energy is coming to this person with the intent of raising issues, then that is between the client and his or her Higher Self or Spirit or their God. Makes use of the revelations from within.
Ignorance is bliss.
You can see backward and forward in time. Stuck in all that muck. Ability to let go of old patterns and situations. Sad about previous break-ups or future ones. In times of sadness, it stops working.