In modern Heathenry there is a concept of spirits known as the Disir (singular Dis). While there is some debate on the true origins of these spirits, it’s a common belief among todays Heathens that these are female ancestral guardians. I personally equate these spirits with The Mothers in Fayerie Traditionalism, those femme spirits that serve The Great Mother.
There are two modern festival/feast days associated with them: Mother’s Night, and Disablot.
But why not today? Why not Mothers Day? Today is a day that we celebrate the mothers of our respective families (blood and chosen) Today is a modern festival to venerate those enfleshed Matriarchs that we love and hold dear. To me it would make sense to extend that love and devotion to the Mothers that walk with us in the Unseen. Just sort of wondering out loud I suppose. I think in the future I might set aside time to honour all the Mothers in my life, Seen and Unseen.