Everything positive or negative happening to us originates from our mind and we have the power to control it. I know it's very easy for me to say that we can control it as supposedly it's not under our control but we aren't aware about the power of thinking and manifesting.
And now what is manifestation? It's our inherent power to achieve whatever we want. I am very much inspired by the book of Dr. Joseph Murphy-"The power of your subconscious mind" which has taught me Everything possible about the law of attraction and how Everything whatever happens to us is because of our own cause because of our own thought process . So if our thoughts are optimistic and towards life and for the betterment of others as well as ourselves then we would be able to achieve whatever we desire for but our desires should always be selfless. It is said that we are what we think all day so if you think you're the king then for sure you will be the king and if you think you're a rag picker you will be one. So always be positive in life think good you will be good.