Which preposition to use with idealities

of Occurrences 20%

'They are spirits of the bog, myths, that hold their carnival in the early grass of the marshy pools,' says the theorist and poet, who believes in the idealities of a poetic fancy.

in Occurrences 1%

Stories of brave deeds, poems of heroism, self-sacrifice, and loyalty, have their places in creating a sentiment of ideality in the child's breast,a sentiment which remains fixed sometimes, even though it be not in harmony with the feeling of the majority.

Which preposition to use with  idealities