Bottom line: Ride the wind and waves to start a new journey.
The first part of the book "Sail Forward Before Sailing" means: raise your sails, go ahead bravely, and then set off.
The second antithetical couplet "Ride the wind and waves to start a new journey" means: Ride the wind for thousands of miles and sail through the waves.
The upper and lower couplets reflect people's perseverance and courage to struggle, as well as their ambition to forge ahead and forge ahead bravely. The upper and lower conjunctions are well matched.