ॐ तत्सदिति श्रीमद्भगवद्गीतासूपनिषत्सु ब्रह्मविद्यायां योगशास्त्रे श्रीकृष्णार्जुनसंवादे अर्जुनविषादयोगो नाम प्रथमोऽध्यायः॥
om tat sat iti srimad bhagavad gitasu upanishatsu brahmavidyayam yogashastre srikrishnarjuna samvade arjuna vishada yogo nama prathamo'dhyayah
Translation
Thus ends the first chapter of the Shrimad Bhagavad Gita, in the Upanishad of Brahma Vidya, the Yoga Shastra, the dialogue between Sri Krishna and Arjuna, entitled 'Arjuna Vishada Yoga' — The Yoga of Arjuna's Grief.
Commentary
The colophon declares the Gita to be both an Upanishad (spiritual teaching) and a Yoga Shastra (practical guide). Even Arjuna's grief is called 'yoga,' teaching us that crisis can be the beginning of spiritual awakening.