Upanishad
/juːˈpænɪʃæd/noun
- each of a series of Hindu sacred treatises written in Sanskrit c. 800-200 BC, expounding the Vedas in predominantly mystical and monistic terms《奥义书》（印度教阐述吠陀教义的梵文系列论文, 创作于公元前约800-200, 主体为一元论秘教）。
词源
from Sanskrit, literally 'sitting near （i.e. at the feet of a master）', from upa 'near'+ ni-ad 'sit down'.