"Why do we hide things of value? To keep them safe. In some cases, because of their sentimental value, or their deep personal meaning for us, we might keep them hidden because we consider only a select few people in our lives worthy of sharing the knowledge of them. Like some item that may have no intrinsic value of its own, but it is valuable and precious to us because it takes us back to a special moment in our life; and no one who doesn’t know us intimately would understand the value of it, and so we keep it tucked away as a memento, away from the eyes of others.
The world cannot understand this life we now have. To them in fact, there is no value in it. Even when we talk to them about it they cannot grasp it, and will often scoff at it and ridicule it. That is, until they themselves are drawn in to it by the Holy Spirit and given a new life of their own. Until then, though, trying to make them understand is like casting pearls before swine. So God has hidden our life in Christ." c.e.t.