If you want to preserve something, make it a tradition. Celebrating their relationship, Twitter user @nanatat07 and her mom had been taking biannual selfies for years, but it’s the latest one that reduced everyone to tears.

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“Yesterday was my last day of high school,” the teen wrote on Twitter. “For 4 years I’ve taken pictures with my mom on my first and last days of school.” “She wasn’t able to make it for the last one, but her strength motivated me to stay strong during this time. All of my hard work is for her!”

The emotional tweet has accumulated over 558K likes and 113K retweets in just a couple of days. “Thank you for all of the kind words and support, it means a lot!” the girl continued in a later post. “The replies have me crying because I never noticed our close bond showed through like this and I’m so glad it did.” Scroll down and check out the heartwarming connection between the two that lives on to this day.

More info: Twitter