Every natural event can be sanctified.

If Jesus sanctified Crucifixion, we can sanctify all natural illnesses, with His help.

It takes coaching, it takes prayer, it takes grace (we ask for more when we run out), it may take regular spiritual direction, but it can be sanctified.

There is an error of pride in some people: "My circumstances are unique, special, an exception. You haven't lived my unique circumstances'.  

"God's love and grace are beyond me."

It's pride that causes this reaction.

"No one will help me get into the waters".