The ancestral "Jade Mirror" ability of the Lin family - when a person connected by blood touches a specific jade, he can see fragments of the jade owner's past (such as memories, regrets), and even vaguely predict his future (it requires energy, and excessive use will cause a splitting headache). The ability comes from the fact that the ancestors of the Lin family were once craftsmen of the palace's "Jade Division". They were expelled for being involved in jade disputes, and they secluded themselves among the people to protect "Jade Virtues".
