You believe in Brahman, so I don't know why you keep going on about what Buddha said. Sunyata and Brahman are mutually exclusive in case you'd forgotten.
You are still in the realm of duality, I am afraid, clinging to names and labels, thinking them to represent reality. Burn them! Free yourself!
"Sunyata is the only ground reality for the life of
Atman.
Atman without
Sunyata would be like motion without energy.
In a similar vein, it can also be said that "becoming"
Sunya or being
in (the field of)
Sunyata is virtually the same thing as being or "becoming"
Atman. It is important that we recognize the negative overtone of
Sunyata and its cognate
Anatman has, as its counterpoint, an affirmative undertone. There is the negation of the unawakened self---the self centred in an individualized field of consciousness and shackled to the perspectives tied to it. This negation forms the basis for a spontaneous affirmation of becoming awakened or enlightened---becoming a decentred self. In essence, consciousness-
as-Sunyata manifests itself in the form of consciousness-as-Atman.
What transpires from the above discussions is a thesis that is better characterized in terms of convergence of Buddhism and Vedanta than in terms of their complementarity to one another. Of course each is a complementary perspective to the other in so far as our making coherent sense of either position is concerned. What we gain from such a complementary understanding of the allegedly incompatible juxtaposition of these two ancient systems of thought is that their apparent difference betrays a profound underlying unity. We have intimations of a "hidden"
Atman of Buddhism on the one hand, and of the "silent"
Sunyata in Vedanta on the other. A deeper study of the Vedantic
Atman-theory results in making the otherwise silent metaphysics of emptiness resonate with a persuasive explanatory voice, much as a scrutinizing look at the Buddhistic
Sunyata-theory manages to get a glimpse of the shadowy presence of a full-fledged
Atman that explains the possibility of enlightenment."
http://www.katinkahesselink.net/tibet/atmsun.htm
*****
By the way yin and yang are from Taoism and not Buddhism, but as usual you just want to throw everything randomly into your surreal new-age cake mix.
Yin Yang is also a Buddhist principle. Also found in Zen and Chinese Buddhism. But in general, Eastern teachings emphasize the non-duality of existence, which the Yin-Yang symbol represents.
Dharma Wheel
The dharma wheel, or
dharmachakra in Sanskrit, is one of the oldest symbols of Buddhism. Around the globe it is used to represent Buddhism in the same way that a cross represents Christianity or a Star of David represents Judaism. It is also one of the
Eight Auspicious Symbols of Buddhism.
A traditional dharma wheel is a chariot wheel with varying number of spokes. It can be in any color, although it is most often gold.
At the center sometimes there are three shapes swirling together, although
sometimes at the center is a yin-yang symbol, or another wheel, or an empty circle.
http://buddhism.about.com/od/eightauspicioussymbols/a/The-Dharma-Wheel.htm
FYI, Zen was brought to China by the Buddhist monk, Bodhidharma, which then mixed with Chan, and later exported to Japan. Ray Griggs, in his book 'The Tao of Zen', proposes that Zen and Taoism are essentially the same teaching.
"The premise of The Tao of Zen is that Zen is really Taoism in the disguise of Buddhism--an assumption being made by more and more Zen scholars. This is the first book that links the long-noted philosophical similarities of Taoism and Zen."
Publisher