A Power beyond earth’s scope has touched the earth;
The repose that might have been can be no more;
A formless yearning passions in man’s heart,
A cry is in his blood for happier things:
Else could he roam on a free sunlit soil
With the childlike pain-forgetting mind of beasts
Or live happy, unmoved, like flowers and trees.
The Might that came upon the earth to bless,
Has stayed on earth to suffer and aspire.
Sri Aurobindo
Savitri, Book II, Canto IV, pages 132 – 133.
You are quite mistaken in thinking that the possibility of the sunlit path is a discovery or original invention of mine. The very first books of Yoga I read more than thirty years ago spoke of the dark and the sunlit way and emphasised the superiority of the second over the other.
It is not either because I have myself trod the sunlit way or flinched from difficulty and suffering and danger. I have had my full share of these things and the Mother has had ten times her full share. But that was because the finders of the Way had to face these things in order to conquer. No difficulty that can come on the sadhak but has faced us on the path; against many we have had to struggle hundreds of times (in fact, that is an understatement) before we could overcome; many still remain protesting that they have a right until the perfect perfection is there. But we have never consented to admit their inevitable necessity for others. It is in fact to ensure an easier path to others hereafter that we have borne that burden. It was with that object that the Mother once prayed to the Divine that whatever difficulties, dangers, sufferings were necessary for the path might be laid on her rather than on others. It has been so far heard that as a result of daily and terrible struggles for years those who put an entire and sincere confidence in her are able to follow the sunlit path and even those who cannot, yet when they do put the trust find their path suddenly easy and, if it becomes difficult again, it is only when distrust, revolt, abhiman, or other darknesses come upon them. The sunlit path is not altogether a fable.
Sri Aurobindo,
The Mother with Letters on the Mother, CWSA volume 32, page 96.