A picture is worth a thousand words

To help someone understand give them an analogy that they can picture. A picture is worth a thousand words. To explain with words why your friend shouldn't open a business in a particular area could end a friendship. But pointing out that stores have come and closed all around that area might save them from signing a lease for five years that they couldn't get out of. That may be a "point of view" that will help them see the big picture.