\"I wish you could be here for these moments, but I know that your spirit lives on in us,\" she added.

Bindi announced her engagement to Chandler Powell in late July, after her fiancé proposed on her birthday.

\"Chandler, close to 6 years ago I fell in love with you and every day since has been a whirlwind of adventure and true happiness,\" she wrote.

\"I’m so looking forwarding to spending our forever together as your wife,\" she added. \"Here’s to a lifetime of friendship, purpose and unconditional love. — Now let’s get married already!\"

View this post on Instagram

A post shared by Bindi Irwin (@bindisueirwin) on Jul 24, 2019 at 3:30am PDT

She also recently shared a family photo alongside her mother, Terri, brother, Robert, and Powell, expressing her gratitude.

View this post on Instagram

Thankful to have such a beautiful family to hold my hand and share life’s most magical moments ❤️💍

A post shared by Bindi Irwin (@bindisueirwin) on Aug 1, 2019 at 3:51am PDT

\"Thankful to have such a beautiful family to hold my hand and share life’s most magical moments,\" she captioned the photo.

Editor's Note: This story has been updated to clarify that Irwin wrote a letter to her late father about her brother.

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