Meaning: The quote "To enter by reason means to realize the essence through instruction and to believe that all living things share the same true nature, which isn't apparent because it's shrouded by sensation and delusion" is attributed to Bodhidharma, a Buddhist monk who lived in the 5th or 6th century. This quote encapsulates the essence of Zen Buddhism and the concept of realizing one's true nature through reason and understanding.

Bodhidharma is often credited with bringing Chan Buddhism (which later evolved into Zen in Japan) from India to China. He is considered the first patriarch of Zen Buddhism and his teachings laid the foundation for the development of Zen philosophy and meditation practices.

The quote emphasizes the importance of using reason and instruction to penetrate the illusion of separateness and delusion that clouds our perception of reality. It suggests that by understanding and believing in the interconnectedness and shared true nature of all living things, one can transcend the limitations imposed by sensory experiences and false perceptions.

The concept of "entering by reason" implies a deep insight into the nature of existence, achieved through rational understanding and contemplation. It suggests a disciplined and methodical approach to uncovering the fundamental truth that underlies all phenomena. This aligns with the Zen emphasis on direct insight and intuitive understanding, as opposed to reliance solely on scripture or dogma.

The notion that all living things share the same true nature is a central tenet in Buddhist philosophy. It reflects the idea of interdependence and interconnectedness, where the boundaries between self and other, subject and object, are dissolved. This understanding is crucial in transcending the ego-driven perception of separateness and in cultivating compassion and empathy for all beings.

The quote also acknowledges that the true nature of existence is not readily apparent due to being obscured by sensations and delusions. This highlights the Buddhist concept of "maya" or illusion, which refers to the deceptive nature of the phenomenal world. According to this view, our perceptions are often distorted by our attachments, desires, and conditioning, leading to a distorted understanding of reality.

In Zen practice, the process of "realizing the essence through instruction" involves guidance from a teacher or master, as well as the study of traditional texts and teachings. This guidance is aimed at helping practitioners develop the clarity of mind and insight necessary to penetrate the veils of illusion and perceive the true nature of reality.

Overall, the quote by Bodhidharma encapsulates the essence of Zen Buddhism, emphasizing the importance of reason, instruction, and belief in realizing the interconnected and true nature of all living things. It encourages practitioners to transcend the limitations of sensory experiences and delusions in order to gain a deeper understanding of existence and cultivate compassion and wisdom.

For more information about Bodhidharma and Zen Buddhism, you can explore various texts, scholarly articles, and resources on Buddhist philosophy and meditation practices.