Faced with suffering, those of us who believe in cause and effect and samsara will think: although I have not committed any wrongdoing in this lifetime, suffering cannot possibly descend on me without a reason. All suffering is dependent on objective and subjective factors. Because of bad actions I committed in the past, I now suffer the consequences. Even a small amount of suffering can cause me so much pain. If I come upon even greater suffering in the future, how will I be able to face it? If I continue to create bad karma and do not repent now, I will have to bear even harsher retributions in the future. I will never be freed from samsara if this cycle is not broken. Just like getting to the root of the illness in order to be cured, if we do not want suffering, we must purify bad karma created in the past.

- Quote from Are You Ready For Happiness? Don't Let the Paper Tiger Scare You Off, "How to Face Suffering"