如來藏=Tathagatagarbha; 見性成佛=becoming Buddha via manifesting Nature of Seeing; 阿賴耶識=Alayavijnana; 九緣生識=nine conditions to grow consciousness; 幾何光學=geometrical optics; 視網模=Retina; 見性Nature of Seeing; 浮塵根=floating dust roots
摘要
物理科學的幾何光學，如應用於視覺認知，則是以眼球、視網模、視神經等為其基本系統。這系統似乎是屬於物質性的「眼」。但是釋迦牟尼佛說『見性是心非眼』。本文主要是要瞭解這科學與佛學之間，是否有所差異。首先我們應用「幾何光學」做出對於「唯心所見」的科學驗證。然後再從如來的本體層次，看『見性』是怎樣的性質。而且更深入地看出見性變現到「浮塵根」的大略流程。基於這大略流程，我們以充分瞭解，唯心所見的「心」即是指視網模等視覺神經之系統。換言之，這佛學與科學之間的「心」與「眼」的不同看法，似乎沒有麼差異。基於見性變現到「浮塵根」流程的瞭解，我們簡短地陳「守六根自性」的看法。這主要是要把『六根』裡活動的「六精」看守起來。不讓他們『終日奔馳于六塵之境』。這樣的修持會使妄想、妄念減少，乃至於不生。這樣便可能達成六根清淨。當六根都清淨時，再繼續專修，即可能成就『束六和合為一精明』的境界，並進而成佛了。 [Abstract] Geometrical optics, when applied to vision cognition, treats eyeball, retina, optic, etc. as its basic system. This system seems to be all about material “eyes”. But Buddha Sakyamuni said “The Nature of Seeing is due to mind, not eyes”. The aim of this essay is mainly to resolve the seeming contradiction between the scientific and the Buddhist concepts of vision cognition. We first use ‘geometrical optics’ to demonstrate scientifically that all phenomena are only what the Observer’s Mind Manifests (OOMM). Then we see from the noumenal view of Tathagata what the 「Nature of Seeing」 is. And we further proceed to draw out very deeply a simple flow path of how the Nature of Seeing finally develops into the six ‘floating dust roots’. Based on the simple flow path we can fully understand that the M(Mind) of OOMM should refer to the vision system of the retina, nerves, etc. In other words, the seeming contradiction between the concepts of scientific ‘eyes’ and Buddhist ‘Mind’ does not actually exist in fact. Due to the understanding of the mentioned simple flow path which leads to six ‘floating dust roots’, we briefly introduce a way of Buddhist practice , namely “Securing one’s Self-nature in six floating dust roots”. This is a practice mainly to control the activities of the six Spirits (somewhat like dust grasping elements) in the six ‘floating dust roots’, not allowing the Spirits to be occupied all day by the things in the domain of the six dusts. This way of cultivation will reduce, and even eliminate, irrational and unreal thinking. This way could clean up all the six roots. When the six roots are cleaned up one may continue to achieve the state of ‘bunching together the six conjunctions into an enlightenment’ and finally to become Buddha.
