Labels:text | screenshot | font | number | black and white | line OCR: The Line of Change is what causes one hexagram to change into another hexagram. Hexagram Hexagram 63 37 6 6 .5 5 4 3 3 2 2 1 In the above illustration hexagram number 63 is changing to hexagram number 37. The 'Line of Change' in this case is Line number 6 in hexagram number 63. A Line of change always changes into its opposite. After Line 6 changes it transforms the entire hexagram. That is why its called the 'Line of Change'