"Satyartha Prakash" is a hindi word. Its english meaning is "The Light of Meaning of the Truth". "Satyartha Prakash" is a 1875 book written originally in Hindi by Maharishi Dayanand Saraswati a renowned religious and social reformer and the founder of Arya Samaj. It is considered one of his major scholarly works. The book was subsequently revised by Swami Dayanand Saraswati in 1882 and has now been translated into more than 20 languages including Sanskrit and several foreign languages like English, French, German, Swahili, Arabic and Chinese. The major portion of the book is dedicated to laying down the reformist advocacy of {Swami Dayanand} with the last three chapters making a case for comparative study of different religious faiths.