Which preposition to use with delightfulness

of Occurrences 13%

As the boy thus led her by the hand, in his quiet progress over the borders of eternity, Dorothy almost imagined that she could discern the near, though dim delightfulness of the home he was about to reach; she would not have enticed the little wanderer back, though she bemoaned herself that she must leave him and return.

in Occurrences 1%

Often did they get far up the dreamy ladder of religious joy, and many a time did they revel with a rich and deafening delightfulness in the regions of zeal there.

Which preposition to use with  delightfulness