It really depends on what the words mean to you.

By default, relaxed alertness would probably branch off ideal state of mind, just in the sense that "state" covers many different aspects.

They can be viewed as the same thing, however. We use many terms, like "flow
state" or "accelerative learning state."

Hey, so precision of terms is a good thing to remember, but it's best to immerse yourself in the PhotoReading experience without thinking about the external references to what you are doing.