In the final episode of the season, Meredith turns hosting duties over to her sister, Brette. And for an important reason: It\u2019s finally time for Meredith to share her own story -- her own new beginning. It\u2019s a story about saying \u201cyes\u201d when that feels right, and about the growth that comes from pushing yourself out of your comfort zone. Email us at loveletters@boston.com.