Everything is energy and energy flows with intentions. These intentions arise from our thoughts. That si why whenever you think about someone intensly, that person gets to know or if you write a letter to someone, even if you choose different words, true intentions reach to that person as your energy is flowing through those words. You can control anything in this world via your thoughts but your thoughts need to be strong enough. In your thoughts you can be present at multiple locations, you can interact with multiple people but you must know how to channelise your thoughts. That is why it is said that one who is able to control his thoughts, is able to control the entire world because in reality there is no difference between you and Universe, the moment you realise this thing, you would realise that you are as strong as the Universe because you are the Universe. The person who is strong in his beliefs and is determined can change an entire nation, can change the world and a person who does not have strong beliefs cannot even control himself instead is controlled by others. So if you want toc hange your life, be aware of your thoughts and once you are aware of your thoughts, find out why you think the way you think after that, you would be able to change them. You are as strong as your thoughts, if you think you can do it, you can and no power in this world can stop you. So find your real strength.