The honesty and hospitality of the people she met made her want to record the customs and lifestyles which were gradually dying out as young people moved to the cities.
王信發現他們生活中有許多優秀的傳統和技藝，隨著年輕山胞的移居平地，而逐漸消失。於是她興起了拍攝傳統山地生活形態，為山地文化留紀錄的念頭。王信會說日語和台語，因此，她在山地來去自如，沒有語言上的障礙。