@KanKan : The starter is what makes your bread rise. You have to make your starter or you can buy it commercially. A lot of people who make their starter from scratch (me) name their starters, mine is called Virgil. The starter is a live culture of flour and water and you have to feed or refresh it every day or it will become sluggish and even die if you let it go too long without fresh flour and water. It takes time, about two weeks, to make a starter that has enough strength to make a loaf rise. It's quite process to be honest but I love it.