Traditional A Constructive Survey of Upanishadic Philosophy is a book by Ramachandra Dattatrya Ranade, also known as Gurudev Ranade, who was an eminent scholar of the Upanishads who specialised in Greek philosophy and emphasized the centrality of a psychological approach as opposed to a theological approach for the proper understanding of the Ultimate Reality.
In that year, inspired by a lecture of Sir Ramakrishna Gopal Bhandarkar, he had first conceived the idea of a presentation of Upanishadic philosophy in terms of modern thought.
He took into consideration of the place of the Upanishads in Indian philosophy, and examined the opinions of the Orientalists with a view to put into hand of the Orientalists and those interested a new method for treating the problems of Indian philosophy, and into the hands of European philosophers a new material for exercising their intellects on, to serve the main intended spiritual purpose.
He employed "the method of construction through a systematic exposition of all the problems that emerge from the discussion of Upanishadic thought in their manifold bearings".
He discusses the varieties of psychological reflection and the roots of later philosophies, before taking up the problem of the Ultimate Reality in the Upanishads.