To grok is to intimately and completely share the same reality or line of thinking with another physical or conceptual entity. Author Robert A. Heinlein coined the term in his best-selling 1961 book Stranger in a Strange Land. In Heinlein's view, grokking is the intermingling of intelligence that necessarily affects both the observer and the observed. From the novel: The Oxford English Dictionary defines grok as to understand intuitively or by empathy; to establish rapport with and to empathise or communicate sympathetically (with); also, to experience enjoyment. Other forms of the word