Kṛṣṇa Is Present (18.73-18.78)
In these last verses Arjuna and Sañjaya take over.
Arjuna bows down to the JagadGuru, Master of Cosmos, and says, 'All my doubts are gone and by Your grace, my memory is regained, O Acyuta; I understand. I shall obey whatever you say and I shall fight, sthito'smi gata-sandehaḥ kariṣye vacanaṁ tava (18.73). The rest is history. Under the guidance of Arjuna, the Kaurava army is annihilated.
Now Sañjaya comes back into the picture. Neither Kṛṣṇa nor Arjuna can speak. Arjuna has disappeared and Kṛṣṇa is in ecstasy. Arjuna has disappeared into the pure Consciousness of Parabrahma Kṛṣṇa.
Sañjaya is expressing his joy and bliss and says, 'muhurmuhuḥ, again and again, whenever I recall it, I am filled with ecstasy. I am showered with Divine grace.' Sañjaya says, 'By the mercy of Vyāsa, vyāsa prasāda, I heard these confidential talks directly from the Master of all mysticism, Yogeśvara Śrī Kṛṣṇa, yogaṁ yogeśvarāt kṛṣṇāt (18.75).'
He concludes with a beautiful auspicious blessing. Wherever the name of Kṛṣṇa, Divine energy of Kṛṣṇa is present and wherever Arjuna dwells, all the divine positive energies will shower there. (18.78).
Listen. Whenever we read, teach or listen to Bhagavad Gītā, Kṛṣṇa and Arjuna are present in their formless form. Make no mistake, they are here throughout these eighteen days. You are the fortunate listeners and readers of this mystic dialogue between the two great souls, the Master-disciple. You are blessed with wealth, health and success in whatever you undertake.
Go with this Kṛṣṇa consciousness and you will be in Nityānanda, eternal bliss.