in (e.g. secret); with (e.g. success)
behind closed doors; behind-the-scenes; (under the veil of) secrecy
temple kitchen; monastery kitchen; quarters of a head priest (and his family)
Imperial Palace; Imperial Court
secretly; covertly; tacitly
one's mind; the bottom of one's heart; inner feelings
back (side); reverse; other side; inside; background; dark side (e.g. of society)
sunken hearth; sunken fireplace
(with a) successful outcome; (ending in) success
arena (e.g. international arena)
social circles; arena of (fashionable) society
secretly; covertly; tacitly
unawares; before one is aware
unawares; before one is aware
mental reservation; making a false declaration of intent