And The Heart?

Everyone's looking for something, just like the Lion, the Scarecrow and the Tin Man in the "Wizard of Oz".

What if you find it in your head and your blood but can't find it in your heart? 2 out of 3 ain't too bad? Or not quite enough? Well the answer's pretty straight forward I guess, if it's not in the heart, it's not enough. But how can it be in your head and your blood and after all that, it doesn't translate into your heart?

And so, one keeps searching, until one finds the answer to all 3. And if you still don't find it, you keep going on, till you drop dead, peaceful in the knowledge that you kept trying and didn't settle for anything less?