Why Is Preaching the Essence?

We’ve often heard that ‘preaching is the essence,’ but here’s an elaboration from Srimad Bhagavatam 6.2.36-37/purport: “One who is interested in his own salvation is not as advanced in Krsna consciousness as one who feels compassion for others and who therefore propagates the Krsna consciousness movement. Such an advanced devotee will never fall down, for Krsna will give him special protection”