The Qixi Festival, also known as Chinese Valentine's Day or Double Seventh Festival, is a traditional Chinese holiday celebrated on the seventh day of the seventh lunar month. This festive occasion commemorates the legend of Weaving Maiden and Cowherd, who are separated by a heavenly river but reunited once a year. Over time, this cultural phenomenon has been adapted into various forms of art and literature across different cultures. In English literature specifically, authors have employed creative narratives to explore themes such as love, longing, and reunion.

Firstly, one notable example can be found in Oscar Wilde's "The Happy Prince and Other Tales," where he uses allegory to convey deeper messages about human nature. In his story "The Selfish Giant," there is an anecdote about two lovers who were separated by a wall built by an unkind giant. Their love remained strong despite being apart for years until they were finally reunited when their bodies turned into trees that grew together across the wall.

Secondly, another instance can be observed in J.R.R. Tolkien's Middle-earth legendarium through the character Arwen Undómiel from "The Lord of the Rings." Arwen is half-elf and half-human who chooses to remain mortal for her love towards human prince Aragorn Elessar against her father Elrond's wishes. This choice reflects upon both sides' sacrifices made due to their undying affection for each other.

Thirdly, Fyodor Dostoevsky explores themes related to love and redemption through his protagonist Alyosha Karamazov from "Brothers Karamazov." Alyosha becomes a symbol of hope during times when it seems impossible for characters like Ivan Karamazov (Alyosha's brother) with his nihilistic views or Dmitri Karamazov (their brother) with his moral ambiguity find solace amidst chaos.

Fourthly, George R.R Martin incorporates elements similar to those found within ancient Chinese mythology into Game of Thrones series through its depiction of dragons representing good fortune and celestial beings associated with deities within Asian cultures.

Fifthly，the theme continues throughout Shakespearean plays such as Romeo & Juliet which tells us how even though social status was against them they still chose each other over everything else; ultimately leading up to tragic consequences because they could not overcome societal barriers between them - highlighting separation due to external factors just like what happened between Weaving Maiden & Cowherd during Qixi festival celebrations every year after all these centuries since then people continue celebrating this beautiful tale while reflecting on timeless lessons about true devotion so much more than any other single event ever will do!