Containment can be a very effective tool to assist you in reducing Causality (or aspects of Karma) in your life. Containment describes thoughts and actions which are proactively taken to reduce the causality (effects or reactions from some other event or occurrence) in your life. To apply containment, you will need to contemplate some of the potential consequences or ramifications of your thoughts, actions, inactions or other events which are occurring at any point in time.
The key aspect of containment is to apply active intellect and some common-sense in whatever you do. So rather than immediately reacting to stimuli, pause for a moment to consider your various courses of action, before proceeding. The judicious application of containment can lead to a happier life with less causality.