Well this question has been answered by Sri Aurobindo, “The Mother prays to teach us to pray”.
Besides since these prayers are written in identification with the earth nature we can say that She is praying on behalf of all of us, for the earth.
Home » Questions on Mother, Sri Aurobindo and Savitri » In Prayers and Mediation, Mother prays, why does she need to pray if she is the Divine Mother🙏?
Well this question has been answered by Sri Aurobindo, “The Mother prays to teach us to pray”.
Besides since these prayers are written in identification with the earth nature we can say that She is praying on behalf of all of us, for the earth.
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It is a world which has emerged from the Inconscient and these things [poverty and misery] are results of the imperfect working of the human mind which, being born into the ignorant life and matter, has to learn by effort …

Certainly the Hindus knew the various means of purifying the mind and intelligence and, during the heydays of ancient India, the Vedic period and even much later, they did turn it both inwards and outwards. That is how they discovered such wonderful things which included plastic surgery, an elaborate pharmacopeia, warcraft and deadly weapons, principles of politics and administration, rules of mathematics and chemistry, linguistics and …

The Mother has given a very beautiful and complete answer to this.
‘Is it really the best that always happens?… It is clear that all that has happened had to happen: it could not be otherwise—by the universal determinism it had to happen. But we can say so only after it has happened, not before. For the problem of the very best that can happen is an individual problem, whether the individual be a nation or a single human being; and all depends upon the personal attitude. If, in the presence of circumstances…