Hifz va nigahdoshti inson az nazari jismi, ruhi, aqli va akhloqi muhimtarin asl va yake az hadafhoi bunyodii qonunguzoriro dar majmuai fiqhi islomi tashkil medihad. Zero ham az didgohi shar va ham az mavqei ilmi khub sobit shudaast, ki jismi inson az har chiz va yo olate mutaassir gardad, on dar majmui ruhiyoti u tasir meguzorad va aqli solim dar jismi solim parvarish meyobad va shakhsi tavono vazifahoi shari va amoli khudro dar zindagi az odami zaif behtar anjom medihad.
Payombar (s) bo darnazardoshti hamai inho mefarmoyad:
«Mumini tavono dar nazdi Hudo nisbat ba zaif behtar va khubtar ast va dar har kadomi onho khayr vujud dorad»
Vaqte mo ba amrho va tavsiyahoi Islom dar borai tani solim, hifzi pokizagi va rioyai sunnathoi fitrat va mani purkhuri, mani mavodi mukhaddir va anvoi muskirot, tahrimi gushti khudmurda, khun va gushti khuk daqiqtar menigarem dar onho hadafhoi olii Islom dar hifzi behdoshti jismonii inson va tadbirhoi peshgirikunanda (tibbi viqoi)-ro ba khubi mushohida menamoem.
Vaqte tavsiyahoi muqarrari Islomro dar borai pokizagii akhloqi, duri az muhithoi oluda ba fasod, khuddori az zino va tardomani va amrhoi qatii onro dar borai hifzi chashm az nigohhoi shahvatolud, rioyai satri dini, khuddori az namoishi husnu zeboii khud va az har guna harakathoi mashbuh va omezishi mardu zani begona (nomahram)-ro va bo taammul mavridi barrasi qaror medihem, ehtiromi dini Islomro ba hifzi pokizagii akhloqii jomea, pokizagii naslho, himoyai genofondi milly ba tavri ravshan dark menamoem va dar onho tadbirhoi peshgirikunandaero mushohida menamoem, ki jomeai islomiro dar darozmuddat az bemorihoi farogir va on kasalhoe, ki ba bemorihoi asr shinokhta meshavand va imruz domangiri jomeahoi akhloqan bebandubor gardidaand, hifz namudaand. Hatto namoz, ki bolotarin mazhari pokizagi va nuqtai payvandi banda bo Hudo ast, az nazari ravonshinosii dini dar taskini asabho, bartaraf sokhtani dardho, iztiroboti botini va pareshoniho, zududani gamho va rekhtani oromish bar qalbi inson vasilai muassire ba shumor meravad. Rasuli Hudo (s) mefarmoyad: «Ey Bilol, namozro barpo dor va moro bo on rohat va oromi. Ruza yake az pahnovartarin bobho dar in zamina buda, ba jismu ruh va aqli inson nerui masuniyat va hamzamon ba qalbi u taqvo va heshtandori mebakhshad, umri mavjudi zindaro daroz va nashotu faoliyati zehni va uzvi organikii onro afzun megardonad. Ruza hamin tavr dar tajdid va faol sokhtani boftahoi badan, ba khusus gadudhoe, ki faoliyati organikii onho nashu namo va binoi jism va ba tanzim darovardani korkardi hazm ast, tasiri bosazoe dorad.
Barnomai ibodatho, tavsiyahoi akhloqi va majmuai garonbahoi fiqhi dar Islom ilova bar on ki ibodat va robitai banda bo Hudo, munosibathoi mobayni mardum va faoliyathoi ijtimoii onhoro ba tanzim medarorand va ilova bar hikmathoi gunogune, ki dar onho nuhuftaast, ba tavri barjastae khususiyati tibbiro niz doro meboshand.