China has a new official political doctrine.

It’s called Xi Jinping Thought, and it is everywhere. Schools, newspapers, television, the internet, billboards and banners all trumpet the ideas of Mr. Xi, the country’s president and Communist Party leader.

Officially known as “Xi Jinping Thought on Socialism with Chinese Characteristics for a New Era,” the ideology will soon be given an even more prominent platform: the preamble of China’s Constitution.

Boiled down, the doctrine is a blueprint for consolidating and strengthening power at three levels: the nation, the party and Mr. Xi himself.

The doctine, like Mr. Xi, is not going anywhere soon. The Party on Sunday abolished the presidential term limit, meaning Mr. Xi could remain in power indefinitely. Here’s your guide to understanding the ideas likely to guide China through the next decade, or possibly longer.