The mental world is usually considered to be subjective and not objective.

Debates regarding free will include how it could be possible for anything in the mental world to have an effect on the physical world.

One is a means and the other an end; they are in different mental worlds.

Awareness and understanding, according to this theory, form the fulcrum by which we can move our mental world.

I'm way past that in my own mental and psychological world.

He had now entered the mental world of the chameleon men.

No one can begin to understand Columbus without realizing that this mental world was always in flux.

Here it's all happening in a mental world, without any downside.

In the intermediate or mental world, it is intelligence and industry.

The physical world and mental world hence do not qualify as being "real".