Bhagavad Gita 15.20
इति गुह्यतमं शास्त्रमिदं उक्तं मयानघ । एतद्बुद्ध्वा बुद्धिमान्स्यात्कृतकृत्यश्च भारत ॥
iti guhyatamaṁ śāstram idam uktaṁ mayānagha | etad buddhvā buddhimān syāt kṛta-kṛtyaś ca bhārata ||
Translation
Thus this most secret science has been declared by me, sinless one. Knowing this, a man becomes wise and accomplished in his duty, Bharata.
Reflection
What might be carried quietly forward now that the architecture is whole?
Read this verse in its chapter: Chapter Fifteen
Closer is small and large at once. Twenty verses worth of dissection get sealed with a single label: guhyatamam shastram, deepest of secret teachings. Anagha, sinless, is how Krishna addresses Arjuna for receiving it. Two results offered. First, buddhiman, intellect ripens, because the architecture is finally clear from root to crown. Second, krita-kritya, what was to be done has been done; the chapter completes some interior task without further ceremony. Beginner reading does not need to feel finished. It only needs to mark that the chapter itself has handed over a completed map. Now the carrying is allowed to proceed quietly.