The happiness of your life depends upon the quality of your thoughts.
From expressing his gratitude to the ones from whom he had learned important qualities and lessons in life to detailing his thoughts and reflections over a wide range of subjects including our mind and thoughts, life and death, goodness, self-judgement, virtuousness, nature, leadership, and human rationality, Meditations gives an insight into the inner life and philosophy of the last of the ‘Five Good Emperors,’ Marcus Aurelius.
Marcus Aurelius wrote the 12 books of the Meditations in Koine Greek as a source for his own guidance and self-improvement. It is possible that large portions of the work were written at Sirmium, where he spent much time planning military campaigns from 170 to 180. Some of it was written while he was positioned at Aquincum on campaign in Pannonia, because internal notes tell us that the first book was written when he was campaigning against the Quadi on the river Granova (modern-day Hron) and the second book was written at Carnuntum.
It is unlikely that Marcus Aurelius ever intended the writings to be published and the work has no official title, so Meditations is one of several titles commonly assigned to the collection. These writings take the form of quotations varying in length from one sentence to long paragraphs.