Doubting Soul
Ignorant and faithless persons who doubt the revealed scriptures do not attain God consciousness; they fall down. For the doubting soul there is happiness neither in this world nor in the next.
Bhagavad-gita 4.40,
Srila Prabhupada
Effects of Eating Remnants of Food Offered to Vishnu
Eating the remnants of food offered to Vishnu can deliver one from all kinds of sinful actions.
Becoming Conscious of Lord Krishna
If you become conscious of Me, (Lord Krishna) you will pass over all the obstacles of conditioned life by My grace. If, however, you do not work in such consciousness, but act through false ego, not listening to Me, you will be lost.
Remembrance of Krishna
Remembrance of Krishna is not possible for the impure soul who has not practiced Krishna consciousness in devotional service. Therefore, one should practice Krishna consciousness from the very beginning of life. If one wants to achieve success at the end of his life, the process of remembering Krishna is essential. Therefore, one should constantly and incessantly chant the Hare Krishna Maha Mantra.