Final answer:
Rachel was excited about meeting Chaya because she had a lot to learn from her. Their meeting would provide Rachel with a sense of connection and broaden her understanding of the world.
Step-by-step explanation:
Rachel was excited about meeting Chaya because she had a lot to learn from her. Rachel had been feeling isolated and disconnected during her summer vacation in a foreign country, and meeting Chaya would provide her with a sense of connection. Rachel was eager to learn about Chaya's culture, customs, and language, and hoped that their meeting would broaden her understanding of the world.