Irritant

Per Google Search…

An irritant, such as a grain of sand or a parasite, enters a mollusk (like an oyster or mussel) and triggers a defense mechanism where the mollusk secretes nacre (mother-of-pearl) in layers around the irritant. This layering process, which can take years, forms a pearl as a protective barrier against the foreign body.

Sometimes the only reason to do something is you can’t NOT do it.  (Intentional double negative.)

The feeling irritates you.  Gnaws at you.  No matter how hard you try, it won’t go away.

You have no choice.  You just gotta do it. 

The good news?

That irritant is how your pearl gets made.

Go make your art (pearl).