The heart is no different from a soup – a soup contains first and foremost clear undiluted plain water – that is the empty hardrive with infinite potential – when in love it reacts lovingly; when it fear, it reacts fearfully; when angry, it react angrily – trouble is, that if poison enters a healthy soup, it turns poisonous; so the only way to remain pure, is to recognize which ingredients (emotions) are healthy and which are poisonous!