How, according to the ideas of the ancient Indians, human behavior influenced his future reincarnation?

the soul of a bloodthirsty and cruel warrior can move into the body of a tiger. A frivolous person can transform into a dragonfly or another insect. The deceiver and the antics in the next life can become a monkey.

Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.