Introduction:
In the short story "A Letter to God" by Gregorio Lopez y Fuentes, the postmaster sends money to Lencho because he mistakenly believes that Lencho's faith in God will be shattered when his crops are destroyed by a hailstorm. The postmaster wants to help Lencho maintain his faith and trust in God.

Explanation:
1. Lencho's Desperation and Faith:
Lencho, a poor farmer, has immense faith in God. When a hailstorm destroys his entire crop, he becomes desperate and sees it as a test of his faith. Lencho firmly believes that God will provide for him and his family.

2. Lencho's Letter to God:
In his distress, Lencho decides to write a letter to God, requesting financial assistance to recover from the loss. He addresses the letter to God and gives it to the postmaster to send.

3. The Postmaster's Understanding:
The postmaster is aware of Lencho's unwavering faith in God. He understands that Lencho expects help from God in his time of need. However, the postmaster also knows that the letter will not reach God physically.

4. The Postmaster's Generosity:
Despite knowing that the letter won't reach God, the postmaster empathizes with Lencho's situation. He decides to help Lencho in a different way by sending him some money. The postmaster believes that this act of kindness will preserve Lencho's faith and prevent him from losing hope in God.

5. Signing the Letter to God:
To ensure that Lencho continues to believe the money is a direct response from God, the postmaster signs the letter as "God." This symbolic gesture is meant to reinforce Lencho's belief that God has heard his plea and has sent him the much-needed financial assistance.

Conclusion:
The postmaster sends money to Lencho to support him during his time of need and to preserve his faith. By signing the letter as "God," the postmaster aims to reinforce Lencho's belief in divine intervention and prevent him from losing hope. This act of kindness demonstrates the postmaster's understanding and empathy towards Lencho's situation.