Roof and Rhetoric share a word sense

Stalingrad's bubble

Just as a roof shields us from the reality of the external world - allowing us to live in our own physical bubble, so rhetoric can convince us that the facts of physical reality don't exist - even outside our physical bubble.

Mental bubbles sometimes burst : see Stalingrad, the Battle of

It can help create a mental bubble seemingly more powerful than any physical shelter - until we run out of fuel, food and ammo , as at Stalingrad.....