Srimad Bhagavatham : 5.5.15 & 16.
If one is serious about going back home, back to Godhead, he must consider the mercy of the Supreme Personality of Godhead the summum bonum and chief aim of life. If he is a father instructing his sons, a spiritual master instructing his disciples, or a king instructing his citizens, he must instruct them as I have advised. Without being angry, he should continue giving instructions, even if his disciple, son or citizen is sometimes unable to follow his order. Ignorant people who engage in pious and impious activities should be engaged in devotional service by all means. They should always avoid fruitive activity. If one puts into the bondage of karmic activity his disciple, son or citizen who is bereft of transcendental vision, how will one profit? It is like leading a blind man to a dark well and causing him to fall in.
It is stated in Bhagavad-gita (3.26): “Let not the wise disrupt the minds of the ignorant who are attached to fruitive action. They should be encouraged not to refrain from work, but to work in the spirit of devotion.”
Due to ignorance, the materialistic person does not know anything about his real self-interest, the auspicious path in life. He is simply bound to material enjoyment by lusty desires, and all his plans are made for this purpose. For temporary sense gratification, such a person creates a society of envy, and due to this mentality, he plunges into the ocean of suffering. Such a foolish person does not even know about this.
The word nashta-drshtih, meaning “one who has no eyes to see the future,” is very significant in this slokam. Life goes on from one body to another, and the activities performed in this life are enjoyed or suffered in the next life, if not later in this life. One who is unintelligent, who has no eyes to see the future, simply creates enmity and fights with others for sense gratification. As a result, one suffers in the next life, but due to being like a blind man, he continues to act in such a way that he suffers unlimitedly. Such a person is a mudha, one who simply wastes his time and does not understand the Lord’s devotional service.
As stated in Bhagavad-gita (7.25):
“I am never manifest to the foolish and unintelligent. For them I am covered by My eternal creative potency [yogamāyā]; and so the deluded world knows Me not, who am unborn and infallible.”
In the Katha Upanishad it is also said: Although ignorant, people still go to other blind men for leadership. As a result. both are subjected to miserable conditions. The blind lead the blind into the ditch.