Like the revelation of the Indian Vedas, this is China 's ancient "Science", proficiency in which has enabled the astrologer to remove or mitigate the sufferings of people by guiding construction and up-keeping of buildings or by prescribing suitable changes in the existing building and its surroundings. Side by side, with the use of cosmic colours and their esoteric laws of reflection and shadow effects, they enrich human lives and make them more resourceful.