What is Dharma
In Buddhism, Dharma means "cosmic law and order", or the teachings of Buddha. There are 84,000 Dharma-doors. A Buddhist will find a dharma and cultivates based on that method. Then, there is a chance to enter the door of the Buddha dharma. That is why it is called the “Door to Understanding.”
Among the Buddha's teachings, the Shurangama Mantra is considered to be the king of mantras because it is the longest and most important. The flourish or demise of Buddhism rests entirely with the Shurangama Mantra. It is the efficacious phrases of the Shurangama Mantra that keep heaven and earth from being destroyed. It is the efficacious phrases of the Shurangama Mantra that keep the world from coming to an end.
Within Buddhism, there are very many important sutras. However, the most important sutra is the Shurangama Sutra. If there are places which have the Shurangama Sutra, then the Proper Dharma dwells in the world. If there is no Shurangama Sutra, then the Dharma-ending Age appears. Therefore, we Buddhist disciples, each and every one, must use our strength and our blood, sweat, and toil to protect the Shurangama Sutra.
“The myriad Dharmas return to one, and to where does that one return?” To where should "one" go back? There’s not even that "one". If there’s not a thing, what might that be? That’s "zero." Zero creates the heavens, earth, and myriad things; it creates immortals, Buddhas, and sages. They are all born from this zero. That zero is limitless and boundless. Think about this number. If you put a "0" next to a "1 ," you’ve got "10", add another circle, it’s a hundred.
The Buddha is just the fundamental nature in every one of us. “All living beings have the Buddha nature; all are capable of becoming Buddhas.” So, to be able to become Buddhas is most democratic. Anyone can become a Buddha!
Chan means stilling thoughts. We will only realize Chan if we still our thoughts. Samadhi means not moving. If we move, we have no samadhi. Entering samadhi requires one to sit in an upright posture. When we cease thinking and deliberating, we can give rise to samadhi power. Over time, as samadhi power develops, wisdom will manifest. With wisdom, our minds can illuminate the true nature of all dharmas. When the mind is completely stilled so that not a single of shred of false thinking remains, we will be able to enter samadhi and our original wisdom will thus manifest. We will then truly understand the basic reason why we are human beings, and will no longer be moved by external things.