The consequence of sin and transgression against Allah’s laws is not restricted to the Aakhirat. The effects of sin are not only spiritual. Allah Ta’ala Who has created us is well aware of the harms and damage which certain acts cause to us both physically and spiritually. Thus, every prohibition and command ordained by Allah Azza Wa Jal have been designed for our own safety, benefit and health of both worlds – this dunya and the Aakhirat.
For example, neglecting the Masnoon method of Wudhu, over-eating, abstention from haraam and mushtabah food, covering utensils, even if empty, at night, not venturing outside unnecessarily between Maghrib and Isha’, not habitually sleeping after Fajr, abstaining from eating milk and fish together, indulging in idle talk after Isha’, abstention from loud laughter, abstention from much laughter and innumerable other commands and prohibitions are all for our spiritual and physical benefit.