What does it mean to be aware that you are aware of something, beyond being aware of that thing?
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This devolves upon of the mechanism of awareness.
Animals have models of the world.
A model is an internal state that is related somehow to an external state.
Such models have evolved for their utility—they supplant the sense organs to a degree.
Sometimes the model can be consulted in lieu of the world via the senses.
<ul><li> the model persists
<li>the model is quicker to reference than the world.</ul>
Perhaps we should distinguish between the model whose purpose is to avoid sensing again, or to remember how things were, as alternatively a signal which is part of stimulus response reflex.
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When applied to humans, a ‘world model’ typically includes cultural elements.
Perhaps most people include local religious elements in their weltanschauung which is  the same as world model.