This is a magical book. One of the brightest heirs of Eaton's paradigm. Islam as environmental history, as labour history, as multiverse; vocalized in Malay, Tamil, Hokkien, Urdu, Punjabi, Arabic, Persian, English, etc.
Westerners often miss that Islam in South East Asia is a syncretization of local culture, folk traditions and Chinese influences which make it very different from Middle Eastern tradition.