Short summaries of each of the chapters of Bhagwadgita. There are lot of learned scholars whose explanations will span 100s of pages for each chapter but can you say it in one page. Can you cryatlise it in a few words for each chapter. If you tried that you would be performing His worship through Jnana Yajna.
आ नो भद्राः क्रतवो यन्तु विश्वतः / A no bhadraaH kratavo yantu vishvataH (Let good (thoughts) come from everywhere, from all the world. Also includes other writings of spiritual nature.