Bhagavad Gita 15.20 · Krishna
The most secret teaching
इति गुह्यतमं शास्त्रमिदमुक्तं मयानघ।
एतद्बुद्ध्वा बुद्धिमान्स्यात्कृतकृत्यश्च भारत॥
iti guhyatamaṃ śāstramidamuktaṃ mayānaghaetadbuddhvā buddhimānsyātkṛtakṛtyaśca bhārata
So I have shared this most secret teaching, sinless one. Understanding it, one becomes wise, and has done all there is to do, Bharata.
What it means
Krishna closes chapter fifteen. He calls this teaching guhyatamam, most secret. Not hidden from anyone, but so deep it's rarely understood. Whoever grasps it becomes truly wise, and has fulfilled their life's purpose. The upside-down tree, the spark within, the supreme Person. It all fits together.
The story
Many families recite this chapter before meals. Arjuna has just received a teaching that ties the whole Gita together, offered gently by his closest friend.
In your life
Remember the moment a hard concept finally clicked in a class, and suddenly everything made sense. Write down the one idea from this chapter that clicked most for you.
Understand this, and the pieces fall into place.