The most important thing is to identify the genealogy of the inherited trapped emotion, in other words, who did it originate with, and who did it flow through to finally get to the person you are working on. Typically, that is all that is needed. And in cases where the inherited emotion originated more than 20 or 30 generations ago, you can often simply ask how many generations and get a precise number of generations, and that will usually suffice. If that is still not enough, and the body wants more, it may mean that you need to find out exactly who has inherited this emotion in the current generation; the person you are working on, obviously, but what about their siblings, children, and so on? Maybe some of them have inherited the emotion, and it is possible to release it from all parties if your intention is clear. Pray!