In truth, to attain to interior peace, one must be willing to pass through the contrary to peace. Such is the teaching of the Sages.
Knowing that his past actions may try to overwhelm him, the devotee must be prepared to combat them. God will give him the strength: His Name will be an impenetrable armor. It will save him from all the consequences.
The world is so constructed, that if you wish to enjoy its pleasures, you must also endure its pains. Whether you like it or not, you cannot have one without the other.