In his book, Song examines the Chinese understanding of Christology in the Incarnation and the Paschal Mystery, which are the foundations of Christian faith.

He attempts to expand the horizons of western theology through the use of the thoughts and experiences of people in Asia, and to decrypt the life of Asians in order to see the saving presence of God in their history and culture.

"[1] Song uses poetry, traditional stories, symbols and rites to show how the peoples of Asia formulate the questions of life as well as socio-political and religious issues.

Using these forms of communication, he shows the history of a compassionate God in Jesus.

Asian theology is based on the terms of the relationship between God and the suffering of humanity.