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Ok, I like your illustration. Let look into it deeper.

Considering that God located very far from the boat then the individual streams of God’s blows departed from a single infinitely-far located point (the God mouth) are parallel, as it is depicted.  So, the sailors raise a sail, exposing it to the force of the Gods blows. Since the God’s individual streams are parallel and with equal forces then the right and left side of the sail’s surfaces are experience the same force. Positioning the sail under a specific angle the sailors generate a predicable thrust.

Now, let pretend that the the leading edge of God’s blows are still parallel but the individual streams depicted above propel across air with different speed, introducing the arrival time delay. Now the God’s blows toward the right side of the sail experience arrival efect but the left side not yet "blessed" by God yet. This twists the sail and offset the relationship between the positioning of the sail and the predictable direction of the sailboat propulsion. Not pretend that strong and soft, wide and narrow God’s blows have different speed and different arrival time.

The Bermuda Triangle was made this way…

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