Imagine you're planning a trip to a new city. You probably wouldn't just jump on a plane and wing it - you'd do some research first, right? The same principle applies when you are trying to understand your customers. You shouldn't try to engage with customers without understanding their journey.
Customer journey mapping is all about figuring out what your customers are thinking and feeling at each step of their journey with your business. It's a way of putting yourself in your customer's shoes and seeing things from their perspective.