The true, authentic path

Longchenpa:

Those who scorn the law of karmic cause and fruit
Are students of the nihilist view outside the Dharma.
They rely on the thought that all is void;
They fall in the extreme of nothingness
And go from higher to lower states.
They have embarked on an evil path
And from the evil destinies will have no freedom,
Casting happy states of being far away.
"The law of karmic cause and fruit,
Compassion and the gathering of merit -
All this is but provisional teaching fit for children:
Enlightenment will not be gained thereby.
Great yogis should remain without intentional action.
They should meditate upon reality that is like space.
Such is the definitive instruction."
The view of those who speak like this
Of all views is the most nihilist:
They have embraced the lowest of all paths.
How strange is this!
They want a fruit but have annulled its cause.
If reality is but a space-like void,
What need is there to meditate?
And if it is not so, then even if one meditates
Such efforts are to no avail.
If meditation on mere voidness leads to liberation,
Even those with minds completely blank
Attain enlightenment!
But since those people have asserted meditation,
Cause and its result they thus establish!
Throw far away such faulty paths as these!
The true, authentic path asserts
The arising in dependence of both cause and fruit,
The natural union of skillful means and wisdom.
Through the causality of nonexistent but appearing acts,
Through meditation on the nonexistent but appearing path,
The fruit is gained, appearing and yet nonexistent;
And for the sake of nonexistent but appearing beings,
Enlightened acts, appearing and yet nonexistent, manifest.
Such is pure causality’s profound interdependence.
This is the essential pith
Of all the Sutra texts whose meaning is definitive
And indeed of all the tantras.
Through the joining of the two accumulations,
The generation and completion stages,
Perfect buddhahood is swiftly gained.
Thus all the causal processes
Whereby samsara is contrived should be abandoned,
And all acts that are the cause of liberation
Should be earnestly performed.
High position in samsara
And the final excellence of buddhahood
Will speedily be gained.