In the house of the Messenger, upon him be peace and blessings, there was a permanent awe. Every action was awesome. It was possible for those who caught a glance of him to feel the allure of Heaven and horror of Hell. His shivering while performing the prayer, swaying to and fro, trembling with the fear of Hell and ‘flying’ on wings of the desire of Heaven and fear of Hell were known and seen in his house. Yes, those who looked at him, remembered God. Imam al-Nasa’i narrates:

While the Messenger was praying, a sound, like a boiling pot, was heard.1