All the research – we are now referring to studies incorporating literally hundreds of millions of people – so this isn’t Freud’s theories – one man’s assumptions, rather the hard core facts – shows exactly what Chassidus teaches, namely, life vacillates between the emotions of fear and love – fear of course is exceptionally detrimental, for it causes stress when we can do nothing about it, and this is the progenitor of all mental and perhaps most physical illnesses, while love is synonymous with happiness.