This is a very simple stitch. As the name goes, the stitch radiates from one corner and beams out in different rays. Radiating stitch is decorative and can be used very flexibly.

radiating_stitch_1    Fig 1: Bring out the needle from O and take the needle in through A. Bring the needle out through O again and in through B. Keep up with this procedure for as many rays as you want.