Bitachon teaches us to be grateful for everything we have. It also teaches us to be grateful for all the things we don't have. If we don't have it, we have to believe we don't need that 'house, car, good looks, bank account that my friend has. I have everything I need to accomplish my mission. These are the thoughts that we try to integrate into our life in order to have increased focus and serenity and reduce worry, competition and jealousy which robs us of our health and happiness. God does the best to those who leave it to HIM.