I think this quote represents the idea of resilience and perseverance in rough times. The concept of resilience is something that is showcased in the statement of "wring hard the spigot" since spigots are a form of faucet or valve, this is showing how one should apply pressure in areas that seem tight or tense. A bung-hole is a form of opening in a form of container, this would illude to the idea of not letting any concepts or ideas escape.

This quote speaks of Gargantua and Pantagruel, two characters that are part of a 5 book series that was written by Francois Rabelais. These two characters are giants that traveled and had a multitude of adventures throughout their story. The novels were published between 1532 and 1634. Throughout the stories, it speaks of Pantagruel's challenges and adventures as well as encounters https://www.britannica.com/topic/Gargantua-and-Pantagruel

This statement is pertaining to the Leader, and Creon, who are discussing the war, and how it can come to a peaceful end. Creon has a voice of power, and his words provide a strong opinion on others and their judgement. He speaks with major authority, and although he may be harsh in his statements, he speaks with Ernest truth and immense power. Creon may not be a peaceful ally, as his statue provides a fearful aura that impacts Medea.

This conversation is between the attendant and nurse, but it is conveyed internally within the Nurse's mind. The conversation is pertaining to the affair pertaining to Medea, Jason, and Glause. The attendant is shown to have a much harsher tone overall compared to the Nurse, while they are seen to be more optimistic for the future to come and the outcome for everyone. This quote pertains to the Nurse's internal dialogue and is portraying her much more hopeless inner thoughts. She seems to be putting up a much more positive front on the outside to protect Medea, but she is a worried mess on the inside.

"Holy Writ" refers to a novel that includes religious power and typically references the Bible or other sacred texts. It is not specified to one religion however, as it can be used to refer to any "sacred" text or novel. In more ancient times, it was also used to reference anything that involved a "holy" topic or reference. This is important to the reference of the warriors defending their lands, gods, and worshipped texts literally.

Source: https://www.oed.com/dictionary/holy-writ_n?tl=true

The Arjun-Vishad is the first of the 18 chapters included in the Bhagavad Gita. It speaks of Arjun, a warrior that also is by chance a prince. He faces multiple dilemmas, including his battles on Kurukshetra. The chapter has a total of 47 shlokas and is the 23rd chapter of the Bhisma Parva.

Source: https://www.gita.givevacha.org/