In our culture, the most terrifying thing, defended against with distraction, drugs, addiction, entertainment, pornography, consumerism, food, acquisition, politics, and war – but mostly by constant talking – is the heartfelt thought and awareness: "I don't know." 

We have yet to scratch the surface of what might lie beyond the gate of this admission, seemingly guarded by Cerberus, the multi-headed dog, and by cherubim with flaming swords.