The foreshadowing:
* Morrie's frail appearance: Mitch is shocked by how thin and weak Morrie looks. This immediately sets the stage for the reader to understand that Morrie is facing a serious illness, even though it's not explicitly stated at this point.
* Morrie's focus on life: Despite his frailty, Morrie is full of life and energy. He is eager to talk about his philosophy, and his focus on living a meaningful life, even in the face of death, foreshadows the book's central themes.
* Mitch's initial reluctance: Mitch, at first, doesn't want to engage with Morrie's philosophical musings. He feels uncomfortable and tries to avoid the deeper conversations. This foreshadows the struggle he will face throughout the book as he grapples with his own mortality and his own meaning in life.
How this foreshadowing plays out:
* The illness: Later in the book, Morrie's illness is revealed to be ALS, a debilitating and ultimately fatal disease. The foreshadowing of his frailty and his focus on life prepares the reader for this revelation and makes the subsequent conversations about death and meaning more poignant.
* Mitch's journey: As Mitch spends more time with Morrie, he begins to confront his own fears and insecurities, eventually embracing the lessons Morrie teaches him about living a meaningful life. The foreshadowing of Mitch's initial reluctance sets up the dramatic arc of his journey.
This is just one example of the many instances of foreshadowing in "Tuesdays with Morrie." The book is filled with subtle hints and clues that prepare the reader for the emotional impact of Morrie's journey and Mitch's transformation.