详细解释:n. 本质, 深意, 灵性, 精神性, 思想的深度, 诚挚, 感情的深度
英语解释：
名词 inwardness:
the choicest or most essential or most vital part of some idea or experience同义词：kernel, substance, core, center, essence, gist, heart, heart and soul, marrow, meat, nub, pith, sum, nitty-gritty