What is the reason for not being profoundly affected (like intense crying or severe fear) when reading or hearing verses of warning and torment, except on certain occasions such as solitude in Ramadan?

Fear of Allah and seeking refuge in Him upon His mention is the characteristic of sincere believers. Its intensity varies according to the strength or weakness of a believer's faith. The reason for weak or absent fear and being unaffected when reciting the Quran is the hardening of the heart, the mind being preoccupied with worldly concerns, and a lack of contemplation and reflection on the meanings of the Quran. If a person truly worshiped Allah and read the Quran with contemplation, they would find their heart softened and humbled. The questioner's increased impressionability during Ramadan (definition) compared to other times is natural, as Ramadan is a month in which believers devote themselves to worship, and the rebellious devils are chained therein. Sins play a significant role in hindering the heart from accepting the truth, and getting rid of them helps the heart to accept the truth and be affected by recitation and admonition.