Breathing helps the immune system and the cells to develop normally. Conscious breathing sends the right signal to the brain that all is good and peaceful. The breath is the bridge to connect your body, your mind and your soul. If you breathe in awareness, your body will be healthier, your mind peaceful and your consciousness will upgrade to a higher frequency. The breath is the bridge to connect your small universe with the Big Universe. Breathe and ask the Universe to bring you peace and to take away everything that makes you suffer, all your negativity.
You do not have to do anything; you just be your true self, be the light, be the love, be the compassion and then you share this with all living creatures around you.