Apart from the
apparent physical domain, Hinduism believes there are many other levels of
existence.
The heavens, which are realms of reward, pleasure, and
delight, are among the various levels of existence.
As a reward for their previous good actions, beings are born
in heaven, and the gods' lives in these realms are generally characterized as
lengthy and happy.
Heaven, on the other hand, is not eternal, and when one's
karmic merit is depleted and one's time in heaven is over, one must unavoidably
descend to take birth in a lesser form.
Heaven is often seen as a diversion from serious religious
practice.
Birth in heaven requires the accumulation and expenditure of
a tremendous quantity of religious merit earned via previous good works, and
hence represents a tremendous drain on one's spiritual resources.
Furthermore, after one is born in paradise, life is so
simple and carefree that most individuals have no desire to participate in
religious activities.
Heaven is seen as a destination to which humans should not
strive for both of these reasons.
You may also want to read more about Hinduism here.
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