a state of mental and emotional calmness
精神的および感情的な落ち着きの状態 (seishinteki oyobi kanjoutekina ochitsuki no joutai)
"After the long vacation, she finally got a peace of mind."
"長い休暇の後、彼女はついに心の平和を得た。" (nagai kyuuka no ato kanojo wa tsuini kokoro no heiwa o eta)
very rarely
to gain initial experience in a particular area or job
to go shopping for a long time until you are tired
A life lived without introspection or self-reflection is not...
to frighten someone very much
to encourage someone to continue or try harder
