A vow is fixed and unalterable determination to do a thing, when such a determination is related to something noble which can only uplift the man who makes the resolve.
Whoever wishes to foresee the future must consult the past; for human events ever resemble those of preceding times. This arises from the fact that they are produced by men who ever have been, and ever shall be, animated by the same passions, and thus they necessarily have the same results.
Those who work at a thing heart and soul not only achieve success in it but through their absorption in that they also realize the supreme truth-Brahman. Those who work at a thing with their whole heart receive help from God.
The power of memories and expectations is such that for most human beings, the past and the future are not as real, but rather more real than the present.