The act of 'doing' Right Concentration is what allows you to understand what it means to 'do' so well that you actually learn how to stop doing. That's the karma that puts an end to karma, the intention that allows you to understand intention until you finally get to the point where you can stop.
This talk explores meditation as a cultivation of the four great efforts. These efforts inspire us to be more conscious of the inner and outer conditions that underpin our experience and to creatively engage with these conditions.