Suffering is nothing more than the idea that there could be something missing and it shows up in your experience as the fear of loss or the hope of gain.
Let go of the idea that there could be something missing and verify it's true by noticing it and you have given up suffering.
The quality of our life is determined by the quality of our actions. The quality of our actions is determined by the quality of our energy. The quality of our energy is determined by the location of o
The cause of all suffering is thinking "I have to think I'm not enough in order to survive in this life." The end of all suffering is noticing that that is not true.