Around age 12 I discovered software development and became my greatest passion. It helped me escape MMORPG addiction and being happy (have a family, buy a home, pursue my hobbies).
If I lost my job I would be sad, no doubt, but I would still be me, a passionate software developer. If you told me I wouldn't be able to write code anymore because of some illness, I would be in a very bad spot, way worse than if I lost my job.
My profession is part of my identity in a strong way, my job is business (although I do love the place I work at).