What we see is not the whole of the Church, but the visible part of it
“The Church is a collection of souls, brought together in one by God’s secret grace, though that grace comes to them through visible instruments, and unites them to a visible hierarchy.
What is seen, is not the whole of the Church, but the visible part of it. When we say that Christ loves his Church, we mean that he loves, nothing of earthly nature but the fruit of his own grace… in innumerable hearts.”
– Bl. John Henry Newman