Michelle Obama has revealed a lot about her personal life over the past two years, perhaps most notably in her 2018 book Becoming.

In honor of Mother’s Day, the former First Lady took to social media to say just how important her mother, Marian Shields Robinson, has been to her.

Via Instagram, Facebook and Twitter, Obama posted a picture of herself, her mother and daughters Sasha and Malia. The caption was just as beautiful.

“Growing up, every time I’d come home from school with a story to share, my mother was there with a snack and a listening ear to hear about what was on my mind. When I came home with a tale about my disastrous second-grade classroom, she marched into the school to figure out what was going on. And as I grew older, including up through my years as First Lady, she was always there for me as a guiding light through whatever fog was clouding my path. She’s always listened more than she lectured; observed more than she demonstrated. In doing so, she allowed me to think for myself and develop my own voice.

From an early age, she saw that I had a flame inside me, and she never tempered it. She made sure that I could keep it lit. Mom, thank you for kindling that fire within me, and for your example as a mother and a grandmother to our girls. We would never be who we are today without you. #HappyMothersDay, Mom. Love you.”