is hidden
Examples
Dance can reveal everything mysterious that is hidden in music, and it has the additional merit of being human and palpable. Dancing is poetry with arms and legs.
Not one of us knows what effect his life produces, and what he gives to others; that is hidden from us and must remain so, though we are often allowed to see some little fraction of it, so that we may not lose courage.
The Future is hidden even from those who are forging it.
No sin is hidden to the soul.
A cat that is hidden with its tail showing.
A sin that is hidden is half forgiven.