what was Elie's descision about fasting on Yom Kippur ? Why did he make that discision ?

Eliezer refuses to bless a God who has allowed crematories to exist. Though he used to be a mystic and used to love New Year's Day, this year he accuses God of injustice and feels strong, yet alone, without God or man. Eliezer runs to find his father when people start wishing each other a happy new year, but neither he nor his father say anything when they see each other. They both understand that the other is reluctant to observe the Jewish holiday. Eliezer and his father refuse to fast for Yom Kippur, and Eliezer feels a pleasant revolt against God. Nevertheless, he still feels a void in his soul.