blaze a new trail

To blaze a new trail means to do something in which nobody has ever done before. This is a cliche often used when someone is going to do something new never done before and it is something that will be very important for other people. The phrase blaze a new trail can be for any type of situation or goal in which something brand new is done, and can even be partly literal such as exploring a new walking or riding trail for the first time.