Final answer:
The sequence in which David stands up dizzy, sees dance-like visions, and feels bleary and reeling before steadying himself by grasping the bed, gazing in the mirror, and finally collapses shivering on his bed represents his disoriented state.
Step-by-step explanation:
When David awoke, he tumbled onto the mat and stood up dizzy. Incomely things began to dance before his eyes, and his mind became so bleary that he felt himself reeling from side to side. Quickly, he grasped the foot of the bed and, clutching it tightly, steadied himself.
After he had gazed in the mirror, he stared blankly at his face and bloodshot eyes before resuming the track again, his foot catching in the mat. When he reached the bed, he collapsed upon the mattress and pulled the blankets over himself, shivering at the chill.