This idiom or expression like sentence means:

What do you want?
What are you talking about?
What are you thinking about?

You don’t have the same mind set as these people.
You‘re not on the same page, or think the same way, as them.

This idiom or expression like sentence has to do with:

Make one think.
Make one think quickly about different things.

This idiom or expression has to do with:

Reminding.

When someone says “Julio’s comments call to mind my younger days,” they mean something like “They remind me of when I was young.”

Also:
Bring back memories.