[649] "And how, friends, is there non-anxiety through non-clinging? Here, friends, an instructed noble disciple — one who has seen the noble ones, who is skilled in the Dhamma of the noble ones, well trained in the Dhamma of the noble ones; who has seen true persons, who is skilled in the Dhamma of true persons, well trained in the Dhamma of true persons — does not regard form (rūpa) as self, nor self as possessing form, nor form as in self, nor self as in form. That form of his changes and becomes otherwise. With the change and becoming-otherwise of form, his consciousness (viññāṇa) does not become bound up with following the change of form. Anxieties (paritassanā) born of following the change of form, arisen in accordance with the nature of things (dhammasamuppādā), do not remain obsessing his mind (citta). Because his mind is not obsessed, he is not frightened, not distressed, not concerned; and through not clinging he is not anxious. He does not regard feeling (vedanā) ... nor perception ... nor volitional formations ... nor consciousness as self, nor self as possessing consciousness, nor consciousness as in self, nor self as in consciousness. That consciousness of his changes and becomes otherwise. With the change and becoming-otherwise of consciousness, his consciousness does not become bound up with following the change of consciousness. Anxieties born of following the change of consciousness, arisen in accordance with the nature of things, do not remain obsessing his mind. Because his mind is not obsessed, he is not frightened, not distressed, not concerned; and through not clinging he is not anxious. Thus indeed, friends, there is non-anxiety through non-clinging."
English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.