Saheb left his house because the storm swept away his house and field. This event is mentioned in the context of a story or a novel, where the character of Saheb is introduced.

Explanation:

The reason for Saheb leaving his house is given explicitly in the question stem. However, to understand the context and significance of this event, we need to analyze the story or novel in which Saheb appears as a character.

Possible analysis:

- Saheb's background: We need to know who Saheb is, where he lived, what his family was like, what his aspirations and dreams were, etc. This information can be obtained from the text. For example, Saheb could be a poor farmer living in a remote village, struggling to make ends meet, but hoping to educate his children and improve his life.
- The storm: We need to know what kind of storm it was, how severe it was, how it affected Saheb's house and field, etc. This information can also be obtained from the text. For example, the storm could be a cyclone or a flood that destroyed everything in its path, leaving Saheb and his family homeless and helpless.
- Saheb's decision: We need to know why Saheb decided to leave his house instead of rebuilding it or staying with his neighbors. This information may or may not be given explicitly in the text, but we can infer some possible reasons. For example, Saheb may have realized that his house and field were in a vulnerable location, prone to natural disasters, and that he needed to move to a safer place. Or, Saheb may have lost faith in his ability to cope with such calamities and decided to give up his old life and start anew.
- The consequences: We need to know what happened to Saheb after he left his house, whether he succeeded or failed in his new venture, whether he found happiness or misery, etc. This information may or may not be given explicitly in the text, but we can speculate some possible outcomes. For example, Saheb may have joined a group of migrant workers and traveled to a big city to find work, where he faced many challenges and hardships but also discovered new opportunities and friendships. Or, Saheb may have wandered aimlessly from place to place, feeling lost and lonely, until he realized that he missed his old home and family and decided to return.

Conclusion:

In summary, the reason why Saheb left his house is only a small fragment of a larger story or novel, which requires more information and analysis to fully understand. The purpose of this question may be to test the student's ability to interpret literary texts, to identify key plot points, and to draw logical conclusions based on textual evidence.