A tool to be used to expereince BEING . That is what is mind .

And the mind the expession of the DNA tool your Brain , has commom actions activities that can be grouped into instinct actions/activities . Common things about minds.

One is the filter and its actions:

The filter is the memory of events and the results of events , did the spirit experience PAIN  or PLEASURE ?

As you have grown the volume of events have created a thick filter from which , you choose actions based upon past results.