well when a person practice spirituality . he start out to attract larger energies , larger vibes in type of peace primly. these energies 1st enter into his power field and start out removing undesirable energies, undesirable vibrations of one’s discomfort ,depression but if he is continuing with non veg diet plan . It boost workload for constructive power.The battle involving superior and undesirable energies outcome in type of detoxification,which  have to faced by particular person who is practicing spirituality. That’swhy if he is performing his practice along with taking non veg diet plan he is just empowering each energies.
Like performing practice he give extra constructive power to his power field and simultaneously he is also taking other undesirable vibes and give extra unfavorable vibes to his power field .
in such instances sometime he really feel really constructive ,peace , really like when larger energy get stronger than decrease energy and sometime he may possibly really feel excess feeling of lust ,greed,rage when decrease energy get stronger than larger energy.
this may possibly come about in these case exactly where particular person even dont take non.veg,then it is look at that he either have extra negativity in his power field or he is absorbing unfavorable vibes from one thing or a person.