I heartily recommend a prayerful consideration of the writings of Father Stephen Freeman. He has developed a metaphor to articulate what really marks an authentic Christian view of reality: the one-storey universe as opposed to the two-storey.
His aim is to expose false platonizing and gnosticism for what it is. And don't be fooled into thinking only Christians are guilty of dividing things into sacred and profane, heaven and earth. Any scientific atheist is effectively doing the same thing when he treats ideas as one thing and facts as another. Anything that robs the world around us of meaning assumes the existence of some other storey where real significance lies undisturbed by messy life here on the ground.
I once tried to work out a way to say something of the same thing, using instead of the architectural metaphor Father Stephen employs, a distinction between seeing reality as "things" or "events." At least I think the two sets of metaphors are trying to say the same thing. It seems to me that what distinguishes a sense of reality as a single storey is that God, salvation, angels, saints, demons, grace and spiritual warfare become events experienced, not objects pondered (or ignored). And if that doesn't affect how we experience each other, I don't know what will.
There is much to think about in Father Stephen's writings, especially on this day when Heaven reveals Himself to us as food. That's about as single storey an event as I can think of. As Father Stephen puts it:
Christ’s promise to us is that “he who eats my [Christ’s] flesh and drinks my blood abides in me and I in him” (John 6:56). It doesn’t say that if you do this you will have visions of a second storey heaven or such things. The language is very “first storey.” Eat, drink, abide. The words are very here and now, though they change the nature of here and now. We are suddenly indwelt by Someone Whom even the universe cannot contain. That reality changes us.
