Answer:

Lhamo presented a sheepskin coat to the narrator as a farewell gift for several reasons. The sheepskin coat holds significant cultural and symbolic value in the Tibetan culture, reflecting the deep-rooted traditions and customs of the people.

Cultural Significance:
- In Tibetan culture, sheepskin coats are considered a valuable and prestigious item. They are often passed down through generations as heirlooms and are seen as a symbol of warmth, protection, and status.
- The sheepskin coat is traditionally made from the wool of Tibetan sheep, which is known for its superior quality and ability to provide insulation in the harsh Himalayan climate. The coat serves as a practical garment for surviving the cold weather conditions of Tibet.

Symbolism:
- The sheepskin coat symbolizes the bond and friendship between Lhamo and the narrator. By gifting such a valuable and cherished item, Lhamo is expressing her deep affection and appreciation for the narrator.
- It also represents Lhamo's desire to provide the narrator with comfort and protection in their journey away from Tibet. The coat serves as a physical reminder of their homeland and the support they have from their community.

Farewell Gift:
- The sheepskin coat is presented as a farewell gift to the narrator because it holds sentimental value and serves as a reminder of their shared experiences in Tibet. It is a way for Lhamo to bid farewell and express her well-wishes for the narrator's future endeavors.
- Additionally, the coat can provide practical use and warmth to the narrator in their new surroundings, ensuring their well-being and comfort.

In conclusion, Lhamo's decision to present a sheepskin coat to the narrator as a farewell gift is rooted in the cultural significance and symbolism associated with this traditional Tibetan garment. It reflects Lhamo's affection, support, and desire to provide comfort and protection for the narrator in their journey away from Tibet.