The ego tells us that we need to be in control of our life, and if we lose control, we will experience hardship. It tells us that death is something to be afraid of. And yet death, like many changes in life, is inevitable. When we experience negative emotions like anger, sadness, worry, and fear, we are ultimately reacting to the workings of the ego and the mind, so any decisions we make as a result of these emotions are ultimately going to indulge the ego and therefore perpetuate more and more of the emotions until it becomes a never-ending cycle of suffering.
Making a change to our lifestyle because of fear ("I'd better lose weight or else my whole body is going to give out") is going to perpetuate more fear, for even if we lose the weight we'll then create a new fear ("What if I put the weight back on?"). Instead, the Yogic path teaches us that when we set intentions to shift our lifestyle to live in greater balance and end our own suffering, we start to make decisions not because of an attempt for our ego to remain in control but to tune in to the perfection of our spirit. We practice each day to allow our ego to become less and less important. We start to see people who we conflict with not as jerks but as victims of their own cycle of suffering. When we set intentions to practice peace every day, negative emotions like fear no longer have any bearing on how we move forward in life.