Mahāprajñāpāramitā Sūtra

Why? Because the purity of the youthful one and the purity of external emptiness, up to the emptiness of the non-entity of self-nature, are non-dual, without two divisions, undifferentiated, and unbroken.

Subhuti, the purity of the immortal youth original: "僊童", a variant used here for "youthful one" is the purity of suchness. The purity of suchness is the purity of the immortal youth. Why? Because the purity of the immortal youth and the purity of suchness are non-dual, without two divisions, undifferentiated, and unbroken.

The purity of the immortal youth is the purity of the dharma-realm, the dharma-nature, the non-falsehood nature, the non-variance nature, the equality nature, the離生性 nature of being detached from birth, the settled dharma, the dharma-abode, the actual limit, the emptiness-realm, and the inconceivable realm. The purity of the dharma-realm, up to the inconceivable realm, is the purity of the immortal youth. Why? Because the purity of the immortal youth and the purity of the dharma-realm, up to the inconceivable realm, are non-dual, without two divisions, undifferentiated, and unbroken.

Subhuti, the purity of the immortal youth is the purity of the noble truth of suffering. The purity of the noble truth of suffering is the purity of the immortal youth. Why? Because the purity of the immortal youth and the purity of the noble truth of suffering are non-dual, without two divisions, undifferentiated, and unbroken. The purity of the immortal youth is the purity of the noble truths of origination, cessation, and the path.