If 'wise men' truly know something about the disbenefits of 'rushing in' and how foolish doing so is, then they ought to explain more about how we ought to curb our enthusiasm or impatience. If a plan feels right and we know precisely what we need to do and why, then our impatience can, at times, be understandable. By throwing yourself into a particular plan now, are you being foolish? The sky insists your chances of success are high but it also implies there might be some truth surrounding the impatience part. Take what needs doing slowly and all will be fine.