Baby feet: a great way to celebrate Mother's Day.

The Duke and Duchess of Sussex posted a new photo of baby Archie (more specifically, his feet) to Instagram on Sunday alongside a heartfelt Mother's Day message. The image's backdrop is full of forget-me-nots: Princess Diana's favorite flower.

"Paying tribute to all mothers today - past, present, mothers-to-be, and those lost but forever remembered," the post says. "We honor and celebrate each and every one of you."

The post also included the poem 'lands' by Nayyirah Waheed. (Meghan has shared her work before.)

To clarify, it's not Mother's Day in the UK — that's generally in March. Does this mean that Meghan Markle, an American who joined the British royal family, will get to celebrate two Mother's Days per year? Wow. Her mind.