ess stands for Evolutionary Stable Strategy.
It is a balance of forces that want to tear down life, and forces that want to build it.
It is neither good nor bad... but in my experience, it prevents you from growing. Before you can grow, you must upset the ess... and force it to move to a higher level.
Growth happens through a series of upset... new ess.
The best example I see in my work is the way Source guides me to advise my health clients... The first diet I give them is not going to make them much healthier but after a series of upset... new ess I can take them all the way up to 70%, the highest I have been able to take anyone.
The ess method of nature is the method of zig-zag... that takes us to the strait and narrow.