Mr. Lockwood is the primary narrator of the novel "Wuthering Heights." In the winter of 1801 he occupies "Thrushcross Grange" as Heathcliff's tenant who resides at "Wuthering Heights." In the first chapter of the novel he pays a visit to Heathcliff his landlord and he narrates to us the circumstances under which he has become Heathcliff's tenant:
my dear mother used to say I should never have a comfortable home; and only last summer I proved myself perfectly unworthy of one.
"While enjoying a month of fine weather at the sea-coast, I was thrown into the company of a most fascinating creature: a real goddess in my eyes, as long as she took no notice of me. I 'never told my love' vocally; still, if looks have language, the merest idiot might have guessed I was over head and ears: she understood me at last, and looked a return - the sweetest of all imaginable looks. And what did I do? I confess it with shame - shrunk icily into myself, like a snail; at every glance retired colder and farther; till finally the poor innocent was led to doubt her own senses, and, overwhelmed with confusion at her supposed mistake, persuaded her mamma to decamp. By this curious turn of disposition I have gained the reputation of deliberate heartlessness; how undeserved, I alone can appreciate."
So, from this we learn that Lockwood has become Heathcliff's tenant to recover from his 'love failure.'
In Chapter 2 Mr. Lockwood again visits Heathcliff at Wuthering Heights,' while he is there it becomes dark soon and to snow heavily and Lockwood does not want to return alone to his residence at Thrushcross Grange, but he is turned out by Heathcliff without even a lantern to light his way. Lockwood however grabs a lantern and walks out of the house only to be set upon by the dogs. Zillah the house keeper saves him from the dogs and speaks up in his defence; finally Heathcliff relents and Lockwood is allowed to spend the night at Wuthering Heights itself.