Sailing Forward is a small quest designed for beginners, given when you repair the sailing raft on the starting island.
Once you've repaired the Sailing Raft with some wood logs and cloth, climb on it and raise the sail. The quest should begins, with its description written in the journal. You have to steer without having to face the rudder, by moving backwards into it until you are in the middle of it and then facing forward towards the sail. Sail like this for at least 5 consecutive seconds to receive your reward, a torch holder. This ship customization item can be placed on the mast and a torch can be put into it to light the surroundings.