I understand the author to say that, for as much as we have not experienced the full flow of the river, we all have some access to at least some of its tributaries. We are not completely deprived of patience, endurance, honesty, etc. We are not disconnected from the source as long as we don't give up effort. Not the selfish effort to improve ourselves but the effort to open up and live from the heart. This has to be the axis of our conscious effort. Just about what I needed to hear. Thank you.