The Fox and the Lion
A Fox who had never seen a Lion happened one day to meet one. When he saw him, he was so afraid that he almost died. When he met him a second time, he was afraid, to be sure, but not as at first. The third time he saw him, the Fox was so bold that he went up to the Lion and spoke to him.
This fable teaches that, when we get used to fearful things, they do not frighten us so much as at first.