Bhagavad Gita · Vibhuti YogaChapter 10, Shloka 9 (10.9)

Shankaracharya. madgataprāṇāḥ mām gatāḥ prāptāḥ cakṣurādayaḥ prāṇāḥ yeṣāṃ … mayi upasaṃhṛtakaraṇāḥ ity arthaḥ; athavā madgataprāṇāḥ madgatajīvanāḥ — with the senses gathered into me, or with life itself in me; tuṣyanti ca paritoṣam upayānti ca ramanti ca ratiṃ ca prāpnuvanti priyasaṃgatyeva — as if from union with the beloved.

Acharya Ramanuja. madgatajīvitāḥ mayā vinā ātmadhāraṇam alabhamānā ity arthaḥ — those who cannot live without me; svaiḥ svaiḥ anubhūtān madīyān guṇān parasparaṃ bodhayantaḥ — telling one another of the qualities each has experienced; vaktāraḥ tadvacanena ananyaprayojanena tuṣyanti, śrotāraś ca tacchravaṇena anavadhikātiśayapriyeṇa ramante — the speakers are content in speaking, the listeners delight in hearing.

Acharya Ramanuja — further. A beautiful explanation: vaktāraḥ tadvacanena ananyaprayojanena tuṣyanti, śrotāraś ca tacchravaṇena anavadhikātiśayapriyeṇa ramante — the speakers are content simply in speaking (with no other aim), and the listeners revel in the boundless joy of hearing. For him "madgataprāṇāḥ" = mayā vinā ātmadhāraṇam alabhamānāḥ — those who simply cannot live without me.

Madhusudana Saraswati. He distinguishes "bodhayantah" from "kathayantah": vidvadgoṣṭhīṣu parasparam anyonyaṃ śrutibhir yuktibhiś ca mām eva bodhayantaḥ — explaining to one another in gatherings of the learned, through scripture and reasoning; and svaśiṣyebhyaś ca mām eva kathayanta upadiśantaś ca — teaching their own disciples. Their contentment: etāvataiva labdhasarvārthā vayam alam anyena labdhavyena — "In this alone we have gained everything; we need nothing more."

Shridhar Swami. nyāyopetaiḥ śrutyādipramāṇair bodhayantaḥ — they explain through sound, reasoned means of knowledge; tuṣyanty anumodanena — they are content in affirming one another's words.

Vedanta Deshika. "Bodhayantah" = telling what is not yet known; "kathayantah" = narrating events (the divine plays, lilas) — two different activities.