The Darning / Embroidery / Pogo Foot has a small opening through which the needle passes while sewing. When the presser foot is down and the Darning / Embroidery / Pogo Foot is in use, the foot raises and lowers with the action of the needle up and down. This allows the fabric to pass under the needle freely.
Do I need a darning foot?
Without a foot, you're far more likely to get a finger caught by the needle. You just won't be able to see the danger area as clearly and this could cause quite a painful puncture. Also keep in mind that a free motion foot does offer stability and a guide when quilting on a small scale.
Do you need a darning foot for free motion quilting?
To free motion quilt on your home sewing machine you will need a darning foot. This special foot is designed to hover over the surface of your quilt, allowing you free range of movement in all directions.