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