The breath is a miner. The breath is the link between mind and body. Your breath is an indication of your condition. So much so that the breath is used for diagnosis in several Eastern medical traditions that have been practiced as far back as 3000 BC. Fundamentally, we can change our condition by changing our breath, and this is a core principle of the science of breath work.
How deep is your breath? Are you conscious of it? Do you clutch for air at your clavicle when you think about certain things? Do you have a hard time catching your breath or retrieving the breath in the depth of your belly?
Deep breath deep life, shallow breath shallow life. 
You see at the base of our diaphragm where the deep breath must be retrieved from and travel to is where energy pockets of trauma are stored.
The Maori have a technique using pressure to release the toxicities in this spot of the diaphragm and breath work can help to release them as well. The breath, allowing more for the emotions of these toxicities to release.
Here is a simple exercise to get you started.
Set a time for 10-15 minutes. And for 3 weeks, breath in 1-2-3 and out 1-2-3. Keep it simple, allow the breath to be the powerful archeologist.
See what emotions come forward, are you comfortable doing this, do you feel a need to add something else, does your ego say this is too simple?
just let go and give it a try.
stop and just acknowledge your breath.