Short answer - Destiny
Long answer
- Who were the 6 infants that were killed by Kaṁsa ?
Who were the 6 infants that were killed by Kaṁsa ?
- Why Devakī had to suffer such an ordeal ?
Why Devakī had to suffer such an ordeal ?
After the deaths of her only 2 sons Hiranyākṣa & Hiranyākṣaśipu, Diti was understandably griefstruck. At this time, according to the Matsyapurāṇa, on the advice of ṛṣi Vaśiṣṭha, Diti propitiated Bhagavāna Viṣṇu through the observance of Madanadvādaśī vrata with the aim to obtain a son who would subdue Indra. When Diti became pregnant again after completing the vrata, Indra became insecure. So, on one occasion when Diti fell asleep without washing her feet, Indra entered inside Diti's body through her nostrils & when he failed to destroy the foetus, he cut it into 7 pieces. On being cut, the foetus created a loud howling noise. Indra said 'Mā ruda' (i.e Don't cry) & silenced them by cutting each piece into 7 pieces, making a total of 49 pieces. Diti's husband, the ṛṣi Kaśyapa converted these 49 pieces into the 49 Maruts (named after the appellation given by Indra), the stormy winds who accompany Indra & are controlled by Rudra. According to the Devībhāgavatapurāṇa, it was actually Indra's mother Aditi, insecure & jealous of her co-wife's unborn child, who directed Indra to attempt aborting the foetus inside Diti's womb. So Diti cursed Aditi to bear the grief of losing her own 7 newborn children. That curse was fulfilled when Aditi reincarnated as Devakī & bore the deaths of her 6 newborn babies shortly after their births & the supposed abortion of her 7th child.
So we have
- a mother destined to bear the pain of losing 7 of her own newborn children
- 6 persons destined to be killed immediately after birth
- A person destined to kill 6 newborn babies.
Now the question arises
- Was it avoidable ?
Was it avoidable ?
A counter-argument is - Vasudeva could have just not impregnated Devaki again after the death of their 1st/7th child. Our answer - The term 'Devaki's 8th child' didn't necessarily meant that all of them must be sired by Devakī's legitimate husband. Since the prophecy referred to Devaki's 8th child, it was clear that nothing could prevent Devaki from conceiving atleast 8 times. So it's better to have all the 8 children fathered by Devakī's legitimate husband than to allow somebody else do it. When carnal desire hits hard, it is practically impossible for ordinary people to resist its pangs. Pāṇdu indulged in sex with Mādrī inspite of being well-aware of the curse placed upon him. When people who can't even afford the basic salt to season their parboiled rice (as they say in Bengali - নুন আনতে পান্তা ফুরোয়) will not leave the chance of begetting children, then what to say of others.
So in short - whatever happened was due to destiny.