What is Insight for?

In Bloodborne I currently have 10 Insight, and about 3 or 4 Madman's Knowledge, which I can convert to Insight.
From what I've read, the higher Insight you have, the harder the game becomes; is that right?
What's the flip-side of Insight? I believe you can sell it for something?
Related: Does increasing your Insight unlock new items to buy from the Insight Bath Messenger?
Best Answer
Check out this wiki link. You can acquire it in many ways and its used mostly to summon players to your world for co-op. Also acquiring certain amounts of Insight will unlock certain effects/events in the game world.
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What Can insight be used for?
Insight is a stat in Bloodborne. It governs the amount of inhuman knowledge you have acquired by exploring the game and defeating enemies. It is required to use the Beckoning Bell to summon other players into your game world.What is insight and why is it important?
The purpose of insights is to connect head and heart knowledge\u2014information plus inspiration. Too often, information just describes phenomena with no clear path of what to do with it. But the best insights reveal behaviors or phenomena and point to solutions or ideas.What insight means?
1 : the ability to understand a person or a situation very clearly. 2 : the understanding of the truth of a situation. insight.Is insight a skill?
Turning Knowledge into Insight Insight definition takes work; it's a skill that requires creativity, persistence, and deep thinking to craft. The most valuable insights come from rigor and serious analysis to translate large amounts of data into concise and compelling findings.What is an insight?
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