Soon after my arrival in Sri Lanka many years ago, I learnt much about mundane superstition from my assistant, and how his life was determined by unseen evil forces and the manifestation of particular events. Within barely minutes of starting his employment, while cleaning my bedroom, he ran to me, shouting: 'Bed is facing where the sun rises! That is very bad fortune! When people die, the body is placed that way.' Later, having shifted the bed 90 degrees despite my protestations, he began to sweep the lawn, but then looked up and saw a tamarind tree. 'Siyambala [tamarind] is bad tree to have in garden!' he told me. 'It is the home of the chief of the yakkas – do not go near it!' He explained further that 'poison water', actually weak carbonic acid exhaled from the tree, 'falls and kills people sleeping below.'
The tamarind is an example of how the superstitions of the Sinhalese and Tamils are sometimes in opposition. Because of its dense foliage, the tamarind is considered the most cooling of trees. Thus, in the past, the Tamils of the Jaffna peninsula always tried to locate their houses underneath such a tree. With the innocence of a griffin (also a newcomer to the Subcontinent), I decided that, rather than relate the Jaffna story, it would be appropriate to try to undermine my assistant's superstitious faith through direct experience, to enlighten him concerning causal determinism.