How do nurses and doctors find the strength to work in palliative care?

There are rewards. For most nurses and doctors in palliative care, it is very rewarding to work with people who are facing serious illness, and sometimes the end of life. So there are a lot of serious parts of the job, and sad parts, but a lot of joyful things too.
Palliative care. Their desire to help patients and their faith in god.
Service. Palliative care is a service that nurses and physicians extend to needy patients. Service to mankind is equal to service to god.