Materialists are generally very attached to their present bodily comforts and to the bodily comforts they expect in the future. Therefore they are always absorbed in thoughts of their wives, children and wealth and are afraid of giving up their bodies, which are full of stool and urine. If a person engaged in Kṛṣṇa consciousness, however, is also afraid of giving up his body, what is the use of his having labored to study the śāstras? It was simply a waste of time.