Silmarillion - Chapter 21 - Of Túrin Turambar

[Galadriel55]

Originally Posted by Inziladun

Well, since the definition of stubborn is "fixed or set in purpose or opinion; resolute", and pig-headed is defined as "stupidly obstinate; stubborn", Morwen was "pig-headed" anyway.

I was trying to differentiate between the concious kind of stubborn when you know exactly what you're doing, and the, erm, "mental" kind of stubborn, when you see the final destination and disregard all and all that is not in the direct path. It's not even an obsession anymore, it's a mania.

Originally Posted by Dictionary

FIXED IDEA: A frozen thought in the mind functioning as a "truth" that the person will automatically act on without thinking about it.

Originally Posted by Another Dictionary

FIXED IDEA: a persistent or obsessing idea, often delusional, that can, in extreme form, be a symptom of psychosis.

So, in other words, Morwen is going crazy. Gradually. (Well, I wasn't going to say that, and I don't want to say that, but it's the best way I can illustrate it to you.)

She's in her right mind when she sends Turin away but refuses to go herself. She's starting to crack up when she finds out in Doriath that Turin is gone. And it goes downhill from there. By the time she met Hurin, "her eyes were wild now, and full of fear", and all that is left in them is the light that she was known for. The only bit of sanity, perhaps? And all she can talk about it her life-long obsession, or, as I would prefer to call it, "fixed idea" - finding her family.