Otzar of yirat shamayim
ב''ה The 'otzar of yirat shamayim' is compared to a king who takes out the most precious treasures from the depths of his kingly storehouse to win a battle. This treasure is so precious the king never showed it to anyone or even looked at it. To win the battle he sells it to give to the soldiers. This corresponds with the concept of 'hakol beyedei shamayim chutz me yirat shamayim." All is in the hands of heavens except for the fear of heaven. This fear of heaven is so precious it was hidden away, even from the king, so to speak. Given to the solitary soldiers to choose good and win over evil. Basi Legani 5746