In the story "The Letter" by D.H. Lawrence, Lencho is a farmer who writes a letter to God asking for money to help him through a difficult time. When the postmaster reads the letter, he is shocked by Lencho's belief that God will send him the money directly. The postmaster decides to help Lencho by collecting money from his colleagues to send to him.

Lencho's craziness:
- Lencho's belief that God will send him money directly shows his naivety and desperation.
- His unwavering faith in God's ability to provide for him despite the challenging circumstances highlights his desperation.

Postmaster's craziness:
- The postmaster's decision to collect money from his colleagues to send to Lencho shows his own naivety and desperation.
- Instead of dismissing Lencho's belief as irrational, the postmaster chooses to enable it by taking action to help him.

Comparison:
- Lencho's craziness stems from his belief in divine intervention, while the postmaster's craziness is fueled by his willingness to go along with Lencho's belief.
- Both characters exhibit a level of irrationality in their actions, with Lencho's belief in God's direct intervention and the postmaster's decision to collect money for him.
In conclusion, while Lencho's craziness is driven by his unwavering faith in God, the postmaster's craziness is evident in his decision to enable Lencho's belief by collecting money for him. Both characters display irrational behavior in the story, highlighting the theme of desperation and the lengths individuals may go to in times of need.