Practicing Yoga in the Age of Quarrel
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food is first class, in goodness, and what class of food is in passion, and third class, in ignorance. We have to raise ourselves to the sattvic (goodness) platform of human civilization, then revive our transcendental consciousness, or Kṛṣṇa consciousness. Everything is there in the  śāstras . Unfortunately we do not consult them.
evaṁ prasanna-manaso 
        bhagavad-bhakti-yogataḥ 
        bhagavat-tattva-vijñānaṁ 
        mukta-saṅgasya jāyate 
        [Bhāg. 1.2.20]
Unless one is liberated from the clutches of these three modes of material nature, he cannot understand God.  Prasanna-manasaḥ . One must be a Brahman-realized soul.  Brahma-bhūtaḥ prasannātmā na śocati na kānkṣati  [Bg. 18.54]. These injunctions are there, so one should take advantage of these  śāstras  and preach. That is the responsibility of intelligent men. The mass of people know that God is great, but they do not know how great God actually is. That we will find in the Vedic literature. That is our duty in this iron age. That is  hari-kīrtana, paraṁ vi-jayate śrī-kṛṣṇa-saṅkīrtanam : glorification of the Supreme.