Those which are produced from causes are not produced. they do not have an inherent nature of production. those which depend on causes are said to be empty; those who know emptiness are aware.
INTENTION, n. The mind's sense of the prevalence of one set of influences over another set; an effect whose cause is the imminence, immediate or remote, of the performance of an involuntary act.
..bear in mind that, in general, it is the object of our newspapers rather to create a sensation-to make a point-than to further the cause of truth." Dupin in "The Mystery of Marie Roget
People lucky enough to live in the vicinity of an industrial hog farm are, with each breath, made keenly aware of the cause of their declining property values.
Destructive thoughts and emotions undermine the very causes of peace and happiness. If you think clearly about it, it makes no sense to think you’re seeking happiness, if you do nothing to restrain angry, spiteful, and malicious thoughts and emotions.