Summary
This quote implies that the speaker's mother possesses an exceptionally kind and gentle nature. The reference to Nebraska suggests that her kindness is emblematic of the stereotypical image of Midwestern hospitality and friendliness. The phrase "painfully sweet" may suggest that her kindness is so intense or genuine that it can be overwhelming or difficult to comprehend. Overall, the quote portrays the speaker's mother as someone who embodies an exaggerated but endearing form of sweetness.