The Cause of Suffering
The second noble truth, usually translated as ‘the cause of suffering,’ literally means ‘the accumulation of the cause of suffering.’ In particular, it refers to the ten kinds of negative karma: there of the mind, three of the body, and four of speech. 31 The opposites of the ten non-virtuous actions are the ten corresponging virtues. Whether karma is virtuous or non-virtuous, one must still experience its consequence.
Most people think only pain causes suffering; they seldom think that pleasure also causes suffering. In reality, both pain and pleasure cause suffering. Suffering can be overt—suffering that feels like suffering. But suffering can be also be subtler, existing below our conscious awareness; this is the suffering of impermanence. All good things that come into your life will eventually end; all thing that arise will perish. As you reap the benefits of past good karma, you also diminish the supply of good karma. There is no guarantee that the stockpile will last forever. Therefore, you need to continue performing good actions with good intentions to replenish your stock of good karma.