Palliative care is support for your wife and you, that person you can call for respite if needed. They can also coach you through the next stages of caring for her. As a person nears the end of life, there are signs to watch for, and ways to keep her comfortable and try to keep pneumonia and UTI's at bay - these can become increasingly probable as the body itself slows down, and are possibly the biggest cause of hospitalization at the end of life.

There are no "wrong" things to say - they are offering you a service that can make the time you have left together easier.