Every year on mother's day Cole, Theodosia, Milly and Lou go to Lilly's grave and place flowers by the stone and talk about what she's missing.
(They do the same on her birthday)

On father's day Lloyd and Analisa go to the Corridor of Elders to pay respects and remember their father as a Sensei.

Cole hates his birthday because when he woke up on his 12th birthday he found out she passed and poor Cole cries himself to sleep every night before his birthday.

I'm sorry-