[jmcodes]

It's a process that I don't have conscious control over.

I don't choose to think random thoughts they appear.

Which is different than thoughts I consciously choose to think and engage with.

From my subjective perspective it is an input into my field of awareness.

[zeroonetwothree]

Your subjective experience is only the tip of the iceberg of your entire brain activity. The conscious part is merely a tool your brain uses to help it achieve its goals, there's no inherent reason to favor it.