Stillness， quiescence， mental equipoise. A synonym for enlightenment， or nirvana （Skt. /sama， /sa^nti; Pali sama）. ［起信论疏 1844.44.213c］ （2） Stabilizing meditation， or calm abiding， in Sanskrit /samatha. Transcribed as 奢摩他， translated as 止 and 定.