The question is, ~~ how can we possibly heal that pain through communication? Most of us try to hide the pain or at least do not talk about it. One thing is a certain remedy, ~~ and that is projecting positive energy by speaking of positive actions and beliefs. Make reference to any positive reinforcement you may have read or heard.
A number of years ago the manager of the health club where I go was looking very frail and had lost a great deal of weight. I asked her if she were alright and only after some considerable conversation I learned from her that she recently had a kidney removed that was malignant. It was devastating to her as she was a very active person, playing tennis 3-4 times a week. Her husband the, head tennis pro at the club, who is my golfing partner was also affected by the news. He was rather depressed to say the least.
She did mention that she still feels lucky to be alive and recalled my accident and that it was miraculous that I am still alive. She really tried to be positive and then I said to her, " When you touch someone's heart, your finger prints never fade"! She has touched the heart of countless people, being the manger for this club for over 20 years. As she walked away, she started to tear and said "thank you, I needed that!"
"The best and most efficient pharmacy is within your own system."
Read the body language of your fellow human. Even if that person is a stranger. if you see his pain, offer kind words such as simple as "have a great day" or a gesture that will leave your spiritual finger print on that person not just until the end of that day, but maybe for life. You might not even be feeling well yourself when you do this. You will attract positive energy to yourself and may even heal yourself your challenges in the process.