Ahankara is the greatest obstacle to Self-realisation. "I know everything. My view or opinion alone is correct. What I do is right. That man does not know anything. Everybody should follow what I say. Everybody should obey me. I am free from any kind of fault. I am full of auspicious qualities. I am very intelligent. That man is very stupid. That man is wretched. That man has got many defects. I am wise. I am beautiful." Thus says the egoistic man. This is the nature of Rajasic Ahankara. He hides his own faults. He exaggerates and advertises his own abilities and qualities. He belittles others. He condemns others. He superimposes faults on others which they have not got. He sees not good but evil in others. He superimposes on himself several good qualities which he does not possess. That man cannot practise Vedantic Sadhana. He is unfit for the path of Jnana.

Raga and Dvesha constitute the great Samsara of the Jiva. They have to be destroyed through the knowledge of the Supreme Brahman. Either through proper understanding and discrimination or through Pratipaksha-Bhavana these currents should be destroyed. Liberation is attained by simplicity, by carefulness, by purity, by controlling the passions and by following the footprints of saints and sages.

Through Vedantic Sadhana the Brahmakara-Vritti is generated. The bamboo strikes against the other bamboos and fire is generated. The whole forest is burnt. There is a huge conflagration. Then the fire subsides by itself. Even so, the Brahmakara-Vritti that is generated in the Sattvika-Manas through meditation on Brahman or the significance of the 'Tat Tvam Asi' Mahavakya destroys Avidya or ignorance and its effects and leads to the attainment of Brahma-Jnana, and finally dies by itself when the Supreme Brahman is realised.

The paste of strychnos potatorum (Nirmal seeds) removes all dirt in the water and helps it to settle at the bottom of the vessel. Along with the dirt the paste also disappears. Even so, the Brahmakara-Vritti destroys all worldly (Vishayakara) Vrittis and finally perishes by itself after the dawn of the knowledge of the Imperishable.