Yes, it perfectly aligns with the core tenets of Buddhism. In Buddhist scriptures, this concept evolved from the principles of "A Mind That Embraces the Vast Emptiness; A Heart Boundless as Myriad Worlds." and "all phenomena arise from the mind." Buddhism believes that a person's "true mind" (or Buddha-nature, innate awareness) is inherently "without boundaries" and without form, therefore without absolute distinctions of size, distance, or self and other.
Size is a relative illusion: We are accustomed to viewing the world through our physical eyes and material concepts, hence the distinction between "big" and "small." But at the level of the mind, a grain of sand can contain the entire universe (a world in a grain of sand), and a tiny thought can instantly traverse vast distances.
Eliminating Discrimination: The core of Buddhist practice (such as the Diamond Sutra) is letting go of "discrimination." When you stop clinging to big and small, good and bad, beautiful and ugly, your mind returns to its original, unrestrained, and boundless state.
What does this have to do with you?
This seemingly profound philosophy is actually closely related to your mental health, emotional management, and quality of life:
1. Expand your tolerance (a broad mind leads to a broad path)
When you feel that your "heart" is "small", even the smallest criticism from others or a trivial unpleasant event can fill your heart like a boulder and cause you pain. If you understand that the heart has no inherent size, you can proactively "enlarge" it, turning those troubles into a drop in the ocean, naturally unable to shake you.
2. Break free from self-imposed limitations.
We often tell ourselves, "This is all I can do," or "I can't shoulder this responsibility." This is limiting ourselves with an imagined sense of "size." Understanding that the heart has no size, you will realize that your potential and compassion are limitless, and you don't need to label yourself as weak or incompetent.
3. Alleviate feelings of conflict with others.
3. Alleviate feelings of antagonism with others.
When we categorize things as big or small, we start to worry about winning or losing, high or low, and who is who. Once you understand that the mind is without discrimination, you will find that the essence of everyone's heart is the same. This perspective helps you let go of jealousy, inferiority, or arrogance, allowing you to achieve true peace in interpersonal relationships.
In short: The essence of the heart has no size. The reason you feel pain or limitation is because you have shrunk your heart; as long as you are willing to let go of attachments, your heart can always be as vast as the universe.
