Tolkien on Becoming a New Person

The spider lay dead beside him, and his sword-blade was stained black. Somehow the killing of the giant spider, all alone by himself in the dark without the help of the wizard or the dwarves or of anyone else, made a great difference to Mr Baggins. He felt a different person, and much fiercer and bolder in spite of an empty stomach, as he wiped his sword on the grass and put it back into its sheath.

“I will give you a name,” he said to it, “and I shall call you Sting.”

After that he set out to explore.

– J.R.R. Tolkien, The Hobbit