What was the past life of the spiritual fetus like?

Spiritual fetus means the reincarnation of a spiritual child. Samsara is the main creed of Hinduism, Sikhism, Jainism, some African religions and many different religions and philosophies. China said the same thing during the Warring States Period, and both Buddhism and Taoism believed in reincarnation. Until the modern world, there are still many people who claim to have past lives.