Arjuna said: With the sole intent of blessing me, whatever You have said about the supreme hidden spiritual Truth, by that my delusion is gone.
On hearing the first few words of exhortation (2.2-3) Arjuna realized he was deluded about whether he should fight or retreat from Kurukshetra (2.7). For either, he should be relieved first of the intense grief scorching his senses (2.8). So he sought redress for his grief as well as lasting welfare. The whole dialogue is thus to dispense with grief and delusion, and gain supreme welfare.
Here, after hearing the greatness and grandeur of the Supreme, the Self, Arjuna admits that his delusion is gone. Whatever he now looks for is to enrich and empower his personality. The further dialogue is on personality enrichment, leading to effective and fulfilling activity, applicable to Arjuna and others alike.