Goldie Hawn has a lot of love for her "only girl" Kate Hudson.

In celebration of her daughter's 37th birthday, the 70-year-old actress shared a seriously adorable baby photo of Hudson. "Happy birthday my only girl! Thank you for coming though me to become YOU!" Hawn captioned the Instagram image. "A shining light full of joy. I love you. #blessingsmydaughter"

WATCH: Melanie Griffith and Goldie Hawn Swap Famous Daughters for the Holidays

The proud mother loves to share flashback photos of her daughter. Just a week ago, she posted a pic of herself and the Kung Fu Panda 3 star hugging, with the message: "We can learn so much from each other #preciousrelationship."

Another pic she posted earlier this year showed Hudson lying on top of her mother. "One of my favorite memories of my baby⭐️ Katie girl," Hawn wrote.

The feelings of admiration are definitely mutual between Hawn and her daughter. In February, Hudson shared with ET the best advice that her mother ever gave her about love and relationships was to "be true to yourself," and "when you're connected intimately [with someone], it's a huge time of growth."

WATCH: Kate Hudson Has a 'Crazy' Easter With Ex Matthew Bellamy and Mom Goldie Hawn

If anyone knows about "connection," it's clearly this mother-daughter duo.