萬松老人評唱天童覺和尚頌古從容庵錄 3.66

3.66

示眾云。還丹一粒。點鐵成金。至理一言。轉凡成聖。若知金鐵無二。凡聖本同。果然一點。也用不著。且道。是那一點。

Instruction to the assembly: A single pellet of the restorative elixir touches iron and turns it into gold; a single word of the ultimate principle transforms an ordinary person into a sage. If you know that gold and iron are not two, and ordinary and sage are fundamentally the same, then sure enough, even a single touch cannot be used. Tell me, what is that single touch?