The exercise of connexion. The imperative "consider frequently" (πολλάκις ἐνθυμοῦ) sets up the EXERCISEcontemplation of nature as a regular practice: to hold in mind the interlinking (ἐπισύνδεσις) of all that is. The governing discipline is desire (acceptance of the order through the contemplation of the Whole).
The sympatheia of the cosmos. All things are "in a way interwoven" (ἐπιπέπλεκται) and therefore friendly to one another (φίλα ἀλλήλοις). Marcus names three physical grounds of this bond: τονικὴ κίνησις (the tonic, "tensile" movement of pneuma that binds the cosmos), σύμπνοια (conspiration, mutual breathing-together), and ἕνωσις τῆς οὐσίας (the DOGMAunity of substance). This is the Stoic doctrine of συμπάθεια — the universal sympathy of the parts of the one living body of the world.
Parallels. Med. 7.9 ("all things are interwoven, and the bond is sacred; scarcely anything is alien to another"); 04-40 (the world as one living being); 04-45 (the wonderful kinship of things); the doctrine of DOGMAthe unity of the cosmos. The term συμπάθεια — SVF II 473, 534, 546.