What is the explanation of the Hadith: "If you knew what I know, you would laugh little and weep much"?

The magnificent hadith: "If you knew what I know, you would laugh little and weep much," was narrated by Al-Bukhari, Muslim, and others. Al-Hafiz Ibn Hajar and others explained that this knowledge relates to the greatness of Allah and His vengeance upon the disobedient, and the terrors of death throes, death, the grave, and the Day of Resurrection. The suitability of this for little laughter and much weeping is clear, and its aim is to instill fear. Among the contexts of this hadith is that the Prophet, peace and blessings be upon him, said: "Indeed, I see what you do not see and hear what you do not hear. The heaven groaned, and it has a right to groan, for there is no space in it the width of four fingers except that there is an angel prostrating his forehead to Allah. By Allah, if you knew what I know, you would laugh little and weep much, and you would not enjoy women on beds, and you would go out to the highlands, supplicating to Allah."