Between

See if you can figure this one out, by Eugene Peterson....

"In matters of church, nothing of what we see apart from what we see is church. And nothing of what we don't see apart from what we see is church. There is no invisible church. There is no visible church. Invisibility and visibility coinhere in church. There is no church without God, whom 'no man has seen... at any time' (John 1:18 NAS). There is no church without the 'great multitude that no one could count, from every nation, from all the tribes and people and languages' (Rev. 7:9) that we can see.

"Church is a staging ground for what takes place between  heaven (invisible) and earth (visible)."

- from Practise Resurrection: A Conversation on Growing Up In Christ

I particularly like that last line. Church is a staging ground for what takes place between heaven and earth. Very nice.