Ardently means characterized by warmth of feeling typically expressed in eager support or activity
Meriam- Webster’s dictionary
“Quicksand” by Nella Larsen
“Suddenly she hated then all. Strange, too, for this was the thing which she had ardently desired to share in, to be a part of this movement to one man’s genius and vision”
I understand the meaning of this word in this context because it is saying that she was eager to share what she had to share.