Probably time to start being sad; I'm mostly going to use "thoughts" that way. But I think what I'm talking about holds for any definition of "thought" where it's a mental activity accessible to the conscious mind.

I recognize different people use internal monologue to a different degree than others, but whether you decide with a monologue or with vague images of concepts, I think the core idea that these are attempts to turn subjective processes into objects for thought, usually so that you can weave a social narrative around them, remains true.