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what do you want to know lol? Well you are right they do go together. You need to mill your herbs you collect for herbalism and then you can use them for your inscription. I'm guessing you are a low level player so I'll just recommend that you work on leveling up your skill and then test different patterns for your inscription and see how they do on the auction house. Don't be surprised if a lot of your low level ones don't sell that well, they will when you are selling higher level ones.