The great Joseph Campbell recounts the ancient distinction in how one sees the world along the equally ancient, albeit artificial, divide: East vs. West.
In the East the hand is 'seen' to feature 9 digits: four are as real as those 5 seen....................now, science tells us the very same story: there is no bright line between the visible and invisible at the atomic level and below.
Here, such an unseen hand, with however many digits one chooses to perceive, gently embraces the young at heart.