poised between something and something
From Longman Dictionary of Contemporary Englishpoised between something and somethingpoised between something and somethingBALANCEto be in a position or situation in which two things have an equally strong influence The world stood poised between peace and war. → poisedExamples from the Corpuspoised between something and something• Like families gathered at Christmas, social animals are poised between cooperation and conflict.• Ahead of it the Wyrmberg turned from a distant toy to several billion tons of rock poised between heaven and earth.