Avatarika
एवं तावन्नृसिंहब्रह्मविद्योपकारिण्यङ्गचतुष्टयव्यापिनी म-हाचक्राख्याम् अभिधातुं तस्मिंश्चक्रे द्वात्रिंशत्पत्रे यथासंख्यंकृतप्रणवसंपुटे न्यस्तमूलमन्त्राक्षरे एकैकस्मिन् तत्तद्देवतानृसिंहव्यूहं स्तुतिमन्त्रवर्णसामर्थ्यलभ्यं च दर्शयितुं तान्म-न्त्रान्प्रश्नोत्तररूपाख्यायिकया आरभते ।
In plain words
Now, to describe what is called the Great Wheel — the diagram that draws together everything taught in the four limbs of the Narasiṃha-Brahman teaching — he turns to its thirty-two petals. Each one holds a syllable of the root-mantra framed by Om on either side, and each carries its own deity and its own glimpse of Narasiṃha's cosmic form, reachable simply through the power of the sound that praises it. To show all of this, he begins the mantras as a story told through question and answer.
Close to the Sanskrit
Thus, in order to speak of what is called the Mahācakra (the Great Wheel), which pervades the fourfold set of limbs helpful to the Narasiṃha-Brahman teaching, and — on that wheel's thirty-two petals, in due order, each enclosed within a casket formed of the praṇava and having the syllable of the root-mantra placed upon it — in order to show, for each single [petal], its respective deity and the array of Narasiṃha attainable through the power of the sound of the eulogy-mantra, he begins those mantras by way of a narrative cast as question and answer.