Sentence:  ...&lsquo;<WSD>Heaven</WSD>&rsquo; as we use it throughout the book is only a convenient but inaccurate translation of the Chinese character "tian". <WSD>Heaven</WSD> in Chinese religions as well as in the Confucian tradition has multidimensional implications... In its metaphysical and physical connotation, <WSD>Heaven</WSD>... refers to... Nature. Applied in the spiritual realm, it signifies an anthropomorphic Lord or a Supreme Being who presides in Heaven, and rules over or governs directly the spiritual and material worlds. 
Meaning of the word marked with <WSD> tags:  The supreme God or Nature which controls the universe.