◎Jade Tablet - 06 - 41
◎The Vertical Path of Youth - 41
Among the rare, there are two individuals who seem to have mastered both the enlightenment of the Shikantaza (Just Sitting) lineage and the enlightenment of the Kundalini Yoga lineage. One of them is Shakyamuni.
Shakyamuni also did not leave behind any scriptures during his lifetime. Considering that the majority of Buddhist scriptures, such as the Lotus Sutra, are remakes from centuries after Shakyamuni's death, if we are to see Shakyamuni's state of enlightenment, it seems we have no choice but to look at how Shakyamuni's teachings themselves were transmitted.
Furthermore, Buddhism perished in India by the 13th century, so tracing its roots there is practically impossible.
(1) The Horizontal Path (Shikantaza)
Regarding this, we look at the transmission of Shikantaza itself.
It seems that Shikantaza was transmitted from one physical person to another. This is because, in the Kundalini Yoga lineage, there are cases where individuals who would not transmit their knowledge unless they lived for hundreds of years do so centuries later—for example, Zhongli Quan receiving transmission from Lü Dongbin. However, in Shikantaza, it appears to be transmitted continuously in a master-to-disciple relationship.
This inexpressible experience began with Shakyamuni, passed from Bodhidharma through many Chinese Zen masters, to Tiantong Rujing, and then to his direct disciple Dōgen, crossing from India to Japan and blossoming there.
Shakyamuni's position in the depths of transmitting this shedding of body and mind is often seen in Zen lineage charts, but there is no further explanation provided.
(2) The Vertical Path (Kundalini Yoga Lineage)
Of Esoteric Buddhism that remains intact, only Tibetan Esoteric Buddhism and Japanese Esoteric Buddhism exist.
Padmasambhava, who studied in India, brought Esoteric Buddhism to Tibet. In the harsh climate of the lunar-like highlands of Tibet, it branched out and bore fruit, establishing adventure maps like the Tibetan Book of the Dead and ultimate methods called the Generation Stage and the Completion Stage.
Regarding Chinese and Japanese Esoteric Buddhism, later monks who traveled from the Western Regions directly brought Esoteric Buddhism from India to China, and Huiguo marked the final brilliance of Chinese Esoteric Buddhism.
It can only be called a mystery of history that the studying monk Kūkai received both the Abhiseka (initiation) of the Diamond Realm and the Abhiseka of the Womb Realm from Huiguo, and was directly instructed in their techniques. Kūkai hurriedly returned to Japan and worked to mature these teachings in Kyoto and Mount Kōya.
Shakyamuni is situated at the very source of the water veins of this massive current.
While we don't often see episodes of Shakyamuni appearing hundreds or thousands of years later to guide later generations, Shakyamuni is regarded as one of the heroes who accomplished the extremely difficult path of Kundalini Yoga. Furthermore, accomplished later practitioners acknowledge this in scriptures like the Mahaparinirvana Sutra. Therefore, it is undoubtedly correct to say that Shakyamuni was at the pinnacle of Kundalini Yogis.
◎Superstar Shakyamuni
Because Kundalini Yoga aims to master all levels of existence, starting with the astral body while possessing a physical body, it is said that achieving its ultimate requires traversing an extraordinarily difficult path. For this reason, accomplished practitioners of Kundalini Yoga in ancient times were given honorific titles such as hero or brave warrior—names that differ in nuance from those given to ascetic seekers.
Now, Professor Honkō Yorifuji, a scholar of Esoteric Buddhism, discovered the mantra of the Womb Realm Mahavairocana Buddha inscribed on the halo of a Buddhist statue at the Ratnagiri ruins in Odisha, India, while researching the origin of the Mahavairocana Sutra.
It is roughly the same as "Noumaku sanmanda bodanan abiraunken" used in the "Womb Realm Mantra Recitation Sequence" of the Japanese Fourfold Practice, but the "Abhira" part is different. Originally, "Abhira" was an address to Vira (meaning hero, referring to the Buddha), but it seems that it was changed to the doctrine of the five great elements—earth, water, fire, wind, and space—by the Tang Dynasty monk Yixing, who wrote the commentary on the Mahavairocana Sutra, and by Kūkai (Reference: Introduction to the Mahavairocana Sutra / Honkō Yorifuji / Daito Shuppansha).
Shakyamuni was a hero. This reveals that, unexpectedly, Shakyamuni was regarded as the representative champion of Kundalini Yoga in ancient India. Some scholars seem to doubt a direct relationship between Shakyamuni and Esoteric Buddhism, but even from this, we can glimpse that Shakyamuni was a superstar who garnered the respect of countless Kundalini Yogis who unfortunately perished during their practice.

