How does the speaker describe Mischa's involvement in the choir?

The speaker describes Mischa's involvement in the choir by highlighting that he is present because of his illness. This detail emphasizes the underlying themes of the story, particularly the connection between personal struggles and community experiences. Mischa’s participation isn't motivated by a desire for accolades or social affirmation; instead, it is driven by the circumstances surrounding his health. This aspect serves to deepen the narrative, suggesting that the choir acts as both a refuge and a form of expression for those dealing with serious life challenges. By situating Mischa's involvement within the context of his illness, the text underscores the choir as a collective space that welcomes individuals with complex personal stories. This reveals a more profound, emotional layer to his character and enhances the overall message of resilience and connection among the choir members.