Just as it feels good and is healthy to have a sneeze, or cleansing bath, so it is good and healthy psychologically to purge unhealthy and toxic thinking and behavior. But, since this is not so common an event, I believe you will need the help of a good psycho-spiritual master, or at least a good teacher/mentor.
How can you hope to avoid injury if you neglect to warm up and prepare for every workout?
If you never bathe your mind in the cleansing waters of deep meditative quiet, how can you hope to remove the dust of daily living, let alone the grimy influence of self-serving, damaging motives?