ἀναχώρησις εἰς ἑαυτόν — "withdrawal into oneself": the return from outer turmoil into one's own ruling part, the one truly quiet and untroubled "place." It is not physical seclusion (country, sea, mountains) nor escapist rest, but a re-grounding — available at any hour — in correct judgement and inner order (εὐκοσμία). The soul becomes an impregnable fortress, the "inner citadel" (ἀκρόπολις, Med. 8.48), when it keeps ready within it the fundamental teachings. Hadot made this image the title-concept of the whole corpus: a person's freedom is sheltered not outside but in the ruling part, which nothing external can reach.

(1) Realise no place is needed: at any hour you may retreat into yourself. (2) Keep ready a small stock of brief, fundamental rules (πρόχειρα) — at the first touch they "wash away" disquiet. (3) The canonical two: (a) things do not touch the soul — they stand still outside, and disturbance comes only from the inner judgement (ὑπόληψις); (b) everything is about to change and be no more. (4) For a specific discontent, a targeted "therapy": at another's vice — we are made for one another and people err involuntarily; at one's own lot — providence / the cosmos; at the body — pain and pleasure do not reach the mind; at fame — the view from above. (5) Do it often (συνεχῶς) and "renew yourself" (ἀνανέου σεαυτόν): it is a repeated re-entry, not a single withdrawal.