If you want to obtain liberation and attain Nirvana, you must refrain from all unwholesome deeds. Otherwise, for every bad deed you do, you will be bound by its retribution. So, if you want to liberate your body and mind and be free from all constraints, you have to uphold the precepts thoroughly. Foolish people only know that it’s painful to uphold the precepts, but they don’t know that breaking the precepts is even more painful overall.