"meanwhile, ere thus we sinn’d and judg’d on earth, within the gates of hell sat sin and death, in counterview within the gates, that now stood open wide, belching outrageous flame far into chaos, since the fiend pass’d through," is an excerpt from

Paradise Lost

Explanation:

In Paradise Lost Book IX, when Satan wins, Sin and Death open the gates to hell and starts building a bridge from hell to earth. When Satan meets Sin and Death meet at the gates of Paradise, both congratulate Satan for his victory. Satan asks Sin and Death to attack and conquer Earth. This is how Sin and Death arrived on earth and corrupted not only humans but all living things.

self-monitoring is in other words holding back your emotions for the better good. usually, people who can't hold their excitement, temper, or any other emotions, need to self-monitor themselves.   lol