Which preposition to use with soberness

of Occurrences 11%

His own experience is so vivid, he is so superlatively conscious of himself, that if, day after day, he is allowed to hector and hear nothing but approving echoes, he will lose his hold on the soberness of things and take himself in earnest for a god.

by Occurrences 1%

When Sandy was going home about eleven o'clock, three sheets in the wind, such was the potent effect of the single drink and those which had followed it, he was scared almost into soberness by a remarkable apparition.

Which preposition to use with  soberness