The most remarkable feature of this phrase is the fact that it employs the rhetorical device of alliteration. Alliteration refers to the repetition of initial consonant sounds in closely associated syllables within a group of words. Because of this, alliteration is also called "initial rhyme." There are several effects that alliteration has on the reader. First, alliteration provides a sense of rhythm to a text. Because of this, it makes the work more enjoyable for the reader. Moreover, alliteration emphasizes a particular phrase or idea. Finally, an advantage of alliteration is the fact that it helps an idea remain memorable in the reader's mind.
In order to survive Auschwitz, prisoners did everything possible to survive, and this included celebrating holidays. A reminder to what they had survived in the past gives them hope in the face of adversity and pain.