In keeping a bullet journal, the keen and budding bullet journalist must prepare for the eventuality that someday a bullet journal will end. In such instances, the journalist will likely want to 'migrate' some or all of the old information from the previous bullet journal into the next. So, in the context of the bullet journal, migration means moving some or all of this old material forth into the new bullet journal. This is an art form all its own and there have been plenty of online resources defecated out in the pursuit of perfecting such an art.