Take care of one's health; use natural remedies for healing; seek guidance from Allah in all matters related to physical and spiritual health.

This hadith explains that fever is caused by the intense heat of Hell, and can be cooled by using water. It teaches us to take care of our health and to use natural remedies such as water when we are feeling unwell. We should also remember that Allah has created us in a way that allows us to heal ourselves naturally, so we should not forget this blessing from Him. Furthermore, this hadith reminds us that Allah knows best about our health and wellbeing, so we should always seek His guidance in all matters related to our physical and spiritual health.