Christmas, or Xmas, is a significant cultural holiday. It primarily celebrates the birth of Jesus Christ but has evolved into a festive occasion for gathering, exchanging gifts, and enjoying delicious food. 

Why are festivals like Christmas integrated into culture-related courses for English as a Second Language (ESL) learners? This is because festivals reflect a country's values, traditions, and customs; they are part of its culture. By learning about festivals, ESL learners can gain a deeper understanding of the cultural context in which the language is spoken, thereby enhancing their language comprehension and communication skills. Additionally, festivals provide rich topics for classroom discussions and writing, helping students expand their vocabulary and improve their speaking abilities. Therefore, including festivals in language courses is a valuable cultural experience that aids ESL learners in better assimilating into the target culture.