All Vedic astrology proves that, after many predictions of life.....if its true how will be focus on something, which we desire in our life, when its fixed we may not achieve that.
Many times in life we also feel this type of situation when after so much effort in life we have not got the proper results, others got that without effort or some effort.....then what is the role of karma if we will not get the things which are not in our destiny..