Consciousness is an ice pond:
Though it is all water,
It needs the energy of the sun to melt.
When ordinary people are awakened,
They are Buddhas;
But they rely on the power of
Dharma for cultivation.
When ice melts,
Then water flows and moistens;
Only then can it perform its
Irrigating function.
When delusion is ended,
Then the mind is open and penetrating,
Responsively manifesting the function
Of the light of spiritual powers.
~ Guifeng Zongmi (780-841)