Contacting a medium

My fourth uncle who is already in his 50s recently has been rather distressed and seem out of sorts. Normally he is quite chirpy and jovial but recently it seems something serious is bothering him a lot.

I have already been rather close to him among my five uncles maybe because he used to teach me homework when I was young and we are quite similar in personality. His pretty daughter who is my niece is also quite close to me as we are mahjong and msn buddies.

My niece told me his dad is moody recently and wishes to contact a medium so that he can talk to his passed away wife because she had been appearing in his dreams last few days and in the dreams, she was quite tormented. My uncle is mentally disturbed by these dreams and you can't console him by saying those are false. His wife passed away due to long term sickness just late last year and we are all very distraght as they are very loving.

From what I know, there are traditional Chinese mediums in the temple who are able to bridge you to your beloved. The medium is able to "call" back the soul of the dead and the soul will come and reside in the medium's body, who from there, able to communicate with the living person. I have never seen it in real but only in some HK movies.