There are two other letters:

"To bring the Divine Love and Beauty and Ananda into the world is, indeed, the whole crown and essence of our yoga. But it has always seemed to me impossible unless there comes as its support and foundation and guard the Divine Truth - what I call the supramental - and its Divine Power...."

(XXIII.753)

Here it's clear: he says that what he calls the "Supramental" is the Divine Truth, and that it must come first, and the rest comes afterwards.

And yet, for some time now and increasingly, there has been an extremely concrete Response to a kind of aspiration (a call or prayer) in which I say to the Lord, "Supreme Lord, manifest Your Love." (It comes at the end of a long invocation in which I ask Him to manifest all His aspects one after another, one after another, and it ends like that.) But then, remarkably enough, at that moment there comes a Response which is growing clearer and clearer, stronger and stronger.... But Sri Aurobindo says that Truth should be established first, and that what he calls the Supramental is the supreme Truth, the Divine Truth. It corresponds to what I noticed while translating that last chapter on "the perfection of the being" in the "Yoga of Self-Perfection": I kept thinking, "But that's only the aspect of Truth; all that he expresses is the aspect of Truth; always and everywhere, it's the angle of Truth; and his supramental action is an action of Truth."

I didn't know he had said it, but it's written clearly here:

"... But it has always seemed to me impossible unless there comes as its support and foundation and guard the Divine Truth - what I call the supramental - and its Divine Power. Otherwise Love itself blinded by the confusions of this present consciousness may stumble in its human receptacles and, even otherwise, may find itself unrecognised, rejected or rapidly degenerating and lost in the frailty of man's inferior nature. But when it comes in the divine truth and power, Divine Love descends first as something transcendent and universal and out of that transcendence and universality it applies itself to persons according to the Divine Truth and Will, creating a vaster, greater, purer personal love than any the human mind or heart can now imagine. It is when one has felt this descent that one can be really an instrument for the birth and action of the Divine Love in the world."

(XXIII.753)

page 236-37 - Mother's Agenda , volume 4 , 24th July 1963

(Then Mother reads two letters by Sri Aurobindo which will appear in a future "Bulletin":)

This I find very, very good:

"What the supramental will do the mind cannot foresee or lay down. The mind is ignorance seeking for the Truth, the supramental by its very definition is the Truth-Consciousness, Truth in possession of itself and fulfilling itself by its own power. In a supramental world imperfection and disharmony are bound to disappear. But what we propose just now is not to make the earth a supramental world but to bring down the supramental as a power and established consciousness in the midst of the rest - to let it work there and fulfill itself as Mind descended into Life and Matter and has worked as a Power there to fulfill itself in the midst of the rest. This will be enough to change the world and to change Nature by breaking down her present limits. But what, how, by what degrees it will do it, is a thing that ought not to be said now - when the Light is there, the Light will itself do its work - when the supramental Will stands on earth, that Will will decide. It will establish a perfection, a harmony, a Truth-creation - for the rest, well, it will be the rest - that is all."

(XXII.13)

It's very useful to say to people - they're such a nuisance! Always wanting to put the cart before the horse. This other letter goes with it:

"It is not advisable to discuss too much what it [the supermind] will do and how it will do it, because these are things the supermind itself will fix, acting out of the Divine Truth in it, and the mind must not try to fix for it grooves in which it will run. Naturally, the release from subconscient ignorance and from disease, duration of life at will, and a change in the functionings of the body must be among the ULTIMATE (Mother repeats) elements of a supramental change; but the details of these things must be left for the supramental Energy to work out according to the Truth of its own nature."

(XXII.8)

(Mother makes the gesture of hammering) I am all the time driving that into people's heads. I spend my time telling them, "First of all, make yourself ready for its coming; afterwards, we'll see what it does!"

page 241 - 42 - Mother's Agenda , volume 4 , 27th July 1963