United Kingdom, May 12 -- Gisele Bundchen thinks being a mother is the "greatest gift" in life.

The 44-year-old star has taken to social media to celebrate Mother's Day (11.05.25) in the US and Brazil, and to reflect on her own experiences of motherhood.

Alongside a series of family photographs, Gisele wrote on Instagram: "I've been quiet over here but very busy living life..Sometimes, the most beautiful moments aren't shared - they're simply lived. Lately, I've been embracing the slower rhythms, the real connections, the beauty in the lessons that come with being present. Today, on Mother's Day, I specially miss my mom, but my heart is full. Being a mother it's been my greatest gift, a journey that humbles me, teaches me, and fills me ...