Breathing and meditation expose incredibly intimate relations with yourself. You access your mind’s self-talk, uncover your feelings and maybe even painful memories. You may not be ready or refuse to be prepared to face them and prefer to avoid this at all costs. However, the path to happiness goes through liberation from this resistance, facing your fears and acknowledging the ways you feel.
Emotions affect your breathing. When emotions arise in response to memories, the rate at which you breathe changes. This happens because of all the interconnectedness of the body and mind, chemicals in the brain and physiological response to stress. So when you observe that a change occurs, instead of resisting it, investigate what causes it.
Without understanding what is the issue how can you resolve one? Run away and hide forever? Maybe you can run from a wild animal, but you can be running forever from your mind and never escape.