Essentially, the phrase godspeed holds the intention of a personal blessing. It is a somewhat
old-fashioned saying often used sarcastically or in a humorous fashion,
yet genuine earnest and/or
true concern can also be one's meaning when using this expression. The intent is to convey hope or desire for another person to successfully accomplish or complete a difficult task, mission, or
journey either currently underway or about to be undertaken. Oftentimes the endeavor at hand is complex and arduous if not convoluted, having little chance of success.