How does Mikhail Bulgakov use imagery in Heart of a Dog?

When Sharik with Philip Philipovich entered the apartment, the owner asked the servant Zina to lead the dog into one room. We have the description of this short ‘exhibition’: “Together they walked down a narrow, dimly-lit corridor, passed a varnished door, reached the end then turned left and arrived in a dark little room which the dog instantly disliked for its ominous smell. The darkness clicked and was transformed into blinding white which flashed and shone from every angle”. After such impression Sharik didn't want to follow the woman and be there in general, even for food. It thought people “tricked me into a dogs' hospital. Now they'll force me to swallow castor oil and they'll cut up my side with knives”.