"_'Here!_ and _here_!' replied Catherine, striking one hand on her forehead, and the other on her breast: 'in whichever place the soul lives. In my soul and in my heart, I'm convinced I'm wrong.'... 'I've no more business to marry Edgar Linton than I have to be in heaven; and if the wicked man in there hadn't brought Heathcliff so low, I shouldn't have thought of it. It would degrade me to marry Heathcliff now; so he shall never know how I love him, and that, not because he's handsome, Nelly, but because he's more myself than I am. Whatever our souls are made of, his and mine are the same.'"
Not only are they made of the same stuff, but Heathcliff _is_ her soul.
"'I cannot express it; but surely you and everybody have a notion that there is, or should be, an existence of yours beyond you. What were the use of my creation, if I were entirely contained here? My great miseries in this world have been Heathcliff's miseries ... my great thought in living is himself.... Nelly! I _am_ Heathcliff! He's always, always in my mind: not as a pleasure, any more than I am a pleasure to myself, but as my own being.'"
Of course, there is Cathy's other secret--her dream, which passes for Emily Brontë's "pretty piece of Paganism". But it is only one side of Emily Brontë. And it is only one side of Catherine Earnshaw. When Heathcliff turns from her for a moment in that last scene of passion, she says: "'Oh, you see, Nelly, he would not relent a moment to keep me out of the grave. _That_ is how I'm loved! Well, never mind. That is not _my_ Heathcliff. I shall love mine yet; and take him with me: he's in my soul. And,' she added musingly, 'the thing that irks me most is this shattered prison, after all. I'm tired of being enclosed here. I'm wearying to escape into that glorious world, and to be always there: not seeing it dimly through tears, and yearning for it through the walls of an aching heart; but really with it and in it. Nelly, you think you are better and more fortunate than I; in full health and strength; you are sorry for me--very soon that will be altered. I shall be sorry for _you_. I shall be incomparably above and beyond you all.'"
True, adoration of Earth, the All-Mother, runs like a choric hymn through all the tragedy. Earth is the mother and the nurse of these children. They are brought to her for their last bed, and she gives them the final consolation.