Lencho's Ungrateful and Unkind Nature:

1. Expecting More:
Lencho is portrayed as an ungrateful person in the story "A Letter to God" as he expected more from God. Despite receiving rain after a prolonged drought, he was dissatisfied because the amount of rain was not enough to fulfill his expectations. He had a fixed idea of what he needed and failed to appreciate the blessings he received.

2. Lack of Appreciation:
Instead of being grateful for the rain that had saved his crops, Lencho expressed his disappointment by calling it a "trick" and a "meager amount." His lack of appreciation for the rain shows his ungrateful nature and his inability to recognize the value of the gift he had received.

3. Accusing God of Theft:
Lencho's unkindness is evident when he accuses God of "stealing" a part of the money he had requested in his letter. He wrote another letter to God asking for the missing amount, showing his lack of trust and gratitude towards God. This accusation reflects his ungrateful and unkind nature, as he fails to understand the concept of divine intervention and instead blames God for his own misfortunes.

4. Disregard for Others:
Lencho's unkind nature is further highlighted when he shows no empathy or concern for the people who might have been affected by the same drought. He remains focused on his own needs and desires without considering the larger picture. This self-centered attitude demonstrates his ungratefulness towards the blessings he did receive.

5. Lack of Faith:
Despite witnessing the miracle of rain in the midst of a drought, Lencho's lack of faith is evident when he doubts its authenticity. Instead of acknowledging the power of nature or a higher being, he questions the existence and benevolence of God. This lack of faith further contributes to his ungrateful and unkind nature.

In conclusion, Lencho's ungrateful and unkind nature is evident through his expectations, lack of appreciation, accusations towards God, disregard for others, and lack of faith. His inability to recognize and be thankful for the blessings he received showcases his ungratefulness and unkindness.