Mind of Enlightenment, Great Compassion, and Skillful Means
The path that all the buddhas teach is the same and is of a single universal taste. It is totally free from all differentiation like empty space and is the ground of all things like the great earth.

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In the Buddha-Dharma the above teaching is recounted as happening the day before he died. It represents one of the higher discourses on the mind of enlightenment.