Some people believe in a special ground. 

Some people follow a way called Dzogchen. 


In the Dzogchen tradition, people study a special idea called the ground. 

The ground has three parts that work together. They are like a mirror. 
In the Dzogchen tradition, people study a concept called the ground. 

The ground works in a way that is very special. It is not a thing that you have to build or create. Instead, it is something that is already present in everyone. It is described as a "groundless ground" by some teachers. This means it acts as a base for everything, but it has no fixed shape. It is also called "Great Primordial Purity." This purity means it is free from ignorance or any kind of cloudiness. It is a state that is always there, even if people do not notice it. 
History shows us many important people who wrote about this idea. Longchenpa was a Tibetan master who lived from 1308 to 1364. He described the ground in great detail. Another teacher named Jigme Lingpa also linked this idea to Buddha-nature. In the 8th century, Vimalamitra wrote a famous commentary. He called the ground the "unfabricated mind." This means the mind is not something put together from other parts. Later, Namkhai Norbu lived from 1938 to 2018 and wrote about the ground too. He explained that the ground is the same for the whole universe and for each person.
There are three main parts of the ground that work together. These are often called the "three wisdoms." 
You can think about these ideas using things you already know. For example, the nature of the ground is like a mirror's capacity to reflect images. The essence is like the emptiness that allows a mirror to work. The compassion part is like the way light might move or play. Some people use a crystal prism to explain how energy shows up. A prism can take white light and turn it into many colors. This helps show how one ground can lead to many different appearances. Even with these examples, teachers say the ground is hard to describe with just words.
In the Dzogchen tradition, the concept of the "ground" is central to understanding existence. 
The mechanism of the ground involves a complex relationship between consciousness and appearance. It is described as a "groundless ground" by the master Longchenpa. This suggests that while it acts as a base for reality, it has no intrinsic nature of its own. The ground is "noetically potent," meaning it has the power to give rise to various states. It results in the production of mind, consciousness, delusion, and knowledge. This process is not a creation of something new. Rather, it is the manifestation of what is already present. The ground is not a transpersonal entity or a single, fixed thing. It is described as one's "unfabricated mind," meaning it is not constructed from parts.
Scholars and practitioners identify three interdependent aspects of the ground, often called the "three wisdoms." 
The history of these ideas traces back to Indian Buddha-nature theory. In the 8th century, Vimalamitra wrote the "Great Commentary," defining the ground as the unfabricated mind. Later, Tibetan masters like Longchenpa (1308–1364) and Jigme Lingpa expanded these views. They specifically linked the Dzogchen ground to the concept of Buddha-nature, or sugatagarbha. In the modern era, teachers such as Namkhai Norbu (1938–2018) continued this work. Norbu explained that the ground is the same at both the universal and individual levels. He noted that this self-perfected state remains hidden due to the illusion of dualism.
Understanding the significance of the ground requires looking at its specific qualities. The essence is associated with the Dharmakaya and the Buddha. The nature is linked to the Saṃbhogakāya and the Dharma. Compassion is associated with the Nirmanakaya and the Sangha. These connections show that the three jewels are fully included in every being. The ground is described as "Great Primordial Purity" (ka dag chen po). This is considered the only flawless description according to various Dzogchen Tantras. It is a state that exists before authentic Buddhas or impure beings ever appeared.
To deepen understanding, teachers use various metaphors for the ground. 
The ground relates to broader philosophical discussions regarding monism and dualism. It is not defined as "one thing" like the concept of Brahman, because it allows for the production of diversity. It is also distinct from the "all-basis" (kun gzhi), which is considered a samsaric mode of consciousness. The ground is an unobstructed and omnipresent state of reality. It serves as the fundamental basis for all entities and individuals. While it is the basis of all, it is an insubstantial state. It remains the underlying reality that connects the individual to the universe.
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