śrī-bhagavān uvāca
mayā te 'kāri maghavan
makha-bhańgo 'nugṛhṇatā
mad-anusmṛtaye nityaḿ
mattasyendra-śriyā bhṛśam
sri-bhagavan uvaca -- the Supreme Personality of Godhead said; maya -- by Me; te -- unto you; akari -- has been done; maghavan -- My dear Indra; makha -- of your sacrifice; bhangah -- the stopping; anugrihnata -- acting to show mercy to you; mat-anusmritaye -- for the sake of remembrance of Me; nityam -- constant; mattasya -- of one intoxicated; indra-sriya -- with the opulence of Indra; bhrisam -- greatly.
According to Sridhara Svami, Indra and Lord Krishna here exchange a heart-to-heart talk. Indra revealed his mind to the Lord, and now Lord Krishna similarly reveals His own intention.
In Text 11 of this chapter, Indra emphatically declared that Lord Krishna is in fact everything, and thus, according to Indra's own criteria, forgetting Lord Krishna is clearly a state of insanity. When the Supreme Lord reminds us of His supreme existence, He is not proudly advertising Himself like a mundane politician or entertainer. The Lord is self-satisfied in His own infinite existence and is trying, lovingly, to bring us back to our own perfect existence as His eternal associates.
From God's point of view even the mighty King of heaven, Indra, is a mere child -- and a naughty child at that -- and thus the Lord, being a caring father, punished His child and brought him back to the sanity of Krishna consciousness.