The irony of commitment is that it's deeply liberating----in work, in play, in love. The act frees you from the tyranny of your interrnal critic, from the fear that likes to dress itself up and parade around as rational hesitation. To commit is to remove your head as the barrier to your life.
Anne Morris on a Starbucks cup
Probably our thoughts are the barriers we set up along the way through life. Soon the wall is so high we can't even see it as a wall any more, but a part of the landscape.