Most people have dreams, desires, or yearnings to fulfill. It is good and means that we have not lost the creative ability to think and visualize what we can become or have, but often the desires are only left in the mental sphere, because all we are doing is "daydreaming", letting our free flying But without accompanying it with actions.
That is why the effort that we must impose for that, go from being something that is in our mind becomes a reality.