[42] Then, bhikkhus, it occurred to the Blessed One Vipassī, the Arahant, the Fully Awakened One: "Suppose I were to teach the Dhamma." Then, bhikkhus, it occurred to the Blessed One Vipassī, the Arahant, the Fully Awakened One: "This Dhamma attained by me is deep, hard to see, hard to understand, peaceful, sublime, beyond the sphere of reasoning, subtle, to be experienced by the wise. But this generation delights in attachment (ālaya), takes delight in attachment, rejoices in attachment. And for a generation that delights in attachment, takes delight in attachment, and rejoices in attachment, this matter is hard to see, namely, specific conditionality (idappaccayatā), dependent origination (paṭiccasamuppāda). This matter too is hard to see, namely, the stilling of all formations, the relinquishing of all acquisitions, the destruction of craving (taṇhā), dispassion, cessation (nirodha), Nibbāna. If I were to teach the Dhamma and others were not to understand me, that would be weariness for me, that would be vexation for me."
And then, bhikkhus, these unprompted verses, never heard before in the past, occurred to the Blessed One Vipassī, the Arahant, the Fully Awakened One:
"This that I have attained with difficulty —
enough now with proclaiming it!
This Dhamma is not easily awakened to
by those beset by lust and hatred.
Going against the stream, subtle,
deep, hard to see, and fine —
those dyed in lust will not see it,
enveloped as they are in a mass of darkness."
English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.