51 changing to 16:

i.ching online-hexagram 51
Your symbol is Hexagram number 51, indicating the frightening and powerful force of thunder. This can be compared to any startling, distressful situation. One maintains his/her equilibrium by remaining steady. Once the danger has passed, people become cheerful again.

i.ching online-hexagram 16
Your symbol is Hexagram 16, harmony. Because of the state of happiness, people will support your actions. It is a good time to set new projects in motion.