Besides silk, the Chinese also exported (sold) teas, salt, sugar, porcelain, and spices. Most of what was traded was expensive luxury goods. This was because it was a long trip and merchants didn't have a lot of room for goods. They imported, or bought, goods like cotton, ivory, wool, gold, and silver.
A code is to change or convert a set of letters sounds or images into another via a medium of some sorts such as paper. Typically with military communication its common to have encryption and redundancies to stop any enemies from discovering how their military communicates internally.
The following statement reflect the ideas in this passage:
- God is undetectable to the human eye.
The Brahmanism was the the very first phase of what is now known as Hindusim. It was a religion of priests/Brahmans who would perform Vedic sacrifice. So, they were the first Hindu priests to adopt the rituals from the Vedic. The post-Vedic Hinduism accepts the doctrine of Karma.
