Be not deceived! Human does not generate thoughts, but many other living organisms send thoughts to him, and these thoughts are either a true and lifesaving signal or a false and destructive noise. Therefore, training is needed to distinguish thoughts that are a true and lifesaving signal from thoughts that are a false and destructive noise; in order to learn with the help of the true and lifesaving signal how to live in Eternity; in order to avoid the torment of not knowing how to live there. And this is why the meaning of temporal life is training for life eternal.