It’s an astonishing continuum of light and shadows. The light is exhilarating while the shadows often hold the deepest meaning. Physical adversity, profound illness, and life-threatening events hold a vast spectrum of experience and learning, given your willingness to accept the twist of fate. Easier said than done, I agree, but when facing this with a positive and realistic attitude, you stand a better chance of growing in mind, body, and spirit. 
You can choose to learn from the event or be drawn in and down by it. Pain is in the process regardless. Breath into it, let it happen and rise above it.