Final answer:
Hindus strive to be good people in their present lives to accumulate positive karma and improve their future incarnations.
Step-by-step explanation:
Hindus strive to be good people in their present lives because they believe in the concept of karma. Karma is the cosmic law of cause and effect, which states that a person's actions in one life will determine their future lives and experiences. By being good and ethical individuals in their current life, Hindus hope to accumulate positive karma and improve their future incarnations.
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