Many of the comments here are about procrastination (and are all very good contributions to the topic).

However the article is more about expanding our thinking and challenging limitations that are self-imposed, which then prevent us from taking certain actions that can be highly significant (if not downright pivotal) for the goals we're pursuing in life.

Personally, one of my favorite phrases is "what if?", in a dreamy, anticipatory mindest of wondering what might be possible. Sometimes this allows me to see that an "evident" limitation can indeed be overcome.