For several years, many indigenous communities such as the Mayan Kobi and Hopi, have told their prophecies regarding the balance in our world regarding elements such as humankind and nature, for example.
This, I believe, is one of the most important secrets that need to be kept alive, because from very theoretical philosophies that they are, they can become concrete actions if they are listened to, and can actually help solve some of the greatest global problems, such as the water and food crisis, or the economical difficulties.
To make a long story short: this indigenous secret is mainly suggesting to create a balance between the technological progress and the world we live in, so that we can preserve it better.
Though this prophecy was presented to the UN in the year 1933, I believe that it is not taken into consideration the way it should be. Indigenous communities should remind the world about this secret, which, I believe, is of vital importance to all of us.
Here is the secret doc**ented on a stone: