The immediate source of a mind... must be a mind which existed before the conception took place; the mind must have a continuity from a previous mind. This we hold to prove the existence of a past life.
The natural laws of the universe are inviolable... what you say and do determines what happens in your life... You are the master of your life and death. What you do is what you are.
From a Buddhist point of view, the actual experience of death is very important. Although how or where we will be reborn is generally dependent on karmic forces, our state of mind at the time of death can influence the quality of our next rebirth. So at the moment of death, in spite of the great variety of karmas we have accumulated, if we make a special effort to generate a virtuous state of mind, we may strengthen and activate a virtuous karma, and so bring about a happy rebirth.
From the scientific view, the theory of karma may be a metaphysical assumption -- but it is no more so than the assumption that all of life is material and originated out of pure chance
Every act of charity, every thought of sympathy, every action of help, every good deed, is taking so much of self-importance away from our little selves and making us think of ourselves as the lowest and the least, and, therefore, it is all good. Here we find that Jnâna, Bhakti, and Karma - all come to one point.
Jnana, bhakti, yoga and karma - these are the four paths which lead to spiritual freedom. One must follow the path for which one is best suited. But in this age, special stress should be laid on karma yoga.