“The warrior witch Morna removed her weirwood mask just long enough to kiss his gloved hand and swear to be his man or his woman, whichever he preferred.”
— thoughts of Jon Snow

Morna = Melisandre?

Possibly I nteresting foreshadowing about Melisandre:

She can be male or female!
She is connected to Weir trees.
She Swears to Serve Jon.
She is a Warrior Witch!

And if you say Melisandre is elsewhere at that time… I think she can teleport between Weir Trees and is a Child of the Forest.

What do you think the meaning of that meeting is?