To me, the essence of keeping the soul nourished is...

To me, the essence of keeping the soul nourished is obedience to one's conscience. I don't think that the soul can be nourished unless people have a strong sense of conscience that they have educated and developed and soaked in the universal and timeless principles of integrity and service. This way, the individual's soul becomes part of the universal soul of service, contribution, and making a difference.