I slowly slipped from Christian to non-religious through middle school and high school. By junior year I was mostly dereligioned. It was sort of like the stages of grieving, but subtler.
Atheism, just like theism, is fundamentally amoral. Gods may exist and their followers may be sadistic pricks or humanists. Gods may not exist and you may give to charity or burn charities down. Belief in the existence of deity is no indication on individual morality.
I'm not sure they'd mind given they share the same general time with Hanukkah, Christmas, Kwanzaa, Festivus...
Gods forbid a non-affiliated celebrant appears to claim their slice of the pie.
And you followed it with a challenge of her subjective evaluation of her own mental, emotional, and physical state. Obviously you think you can quantify well-being without the use of personal evaluation.
I have heard stories about ghosts writing/imprinting directly onto a paper, but that seems like an uncommon claim.
I believe George-ananda has a picture of Jesus that would qualify as such.