"The light of the celestial world makes war against the world of shadow and illusion. The rays of the Sun of Truth dispel the darkness of superstition and misunderstanding."

"O SON OF MY HANDMAID! Wouldst thou seek the grace of the Holy Spirit, enter into fellowship with the righteous, for he hath drunk the cup of eternal life at the hands of the immortal Cup-bearer and even as the true morn doth quicken and illumine the hearts of the dead."

-Bahá'u'lláh The Hidden Words of Bahá’u’lláh, Persian No. 58

 DISCOURSE AT ‘L’ALLIANCE SPIRITUALISTE’
Salle de l’Athenée, St Germain, Paris,
 November 9th, 1911

 ... "Every heart should radiate unity, so that the Light of the one Divine Source of all may shine forth bright and luminous. We must not consider the separate waves alone, but the entire sea. We should rise from the individual to the whole. The spirit is as one great ocean and the waves thereof are the souls of men.

We are told in the Holy Scripture that the New Jerusalem shall appear on earth. Now it is evident that this celestial city is not built of material stones and mortar, but that it is a city not made with hands, eternal in the Heavens.

This is a prophetic symbol, meaning the coming again of the Divine Teaching to enlighten the hearts of men. It is long since this Holy Guidance has governed the lives of humanity. But now, at last, the Holy City of the New Jerusalem has come again to the world, it has appeared anew under an Eastern sky; from the horizon of Persia has its effulgence arisen to be a light to lighten the whole world. We see in these days the fulfilment of the Divine Prophecy. Jerusalem had disappeared. The heavenly city was destroyed, now it is rebuilt; it was razed to the ground, but now its walls and pinnacles have been restored, and are towering aloft in their renewed and glorious beauty.

In the Western world material prosperity has triumphed, whilst in the East the spiritual sun has shone forth.

I am very glad to see such an assembly as this in Paris, where spiritual and material progress are met together in unity.

Man—the true man—is soul, not body; though physically man belongs to the animal kingdom, yet his soul lifts him above the rest of creation. Behold how the light of the sun illuminates the world of matter: even so doth the Divine Light shed its rays in the kingdom of the soul. The soul it is which makes the human creature a celestial entity!

By the power of the Holy Spirit, working through his soul, man is able to perceive the Divine reality of things. All great works of art and science are witnesses to this power of the Spirit.

The same Spirit gives Eternal Life.

Those alone who are baptized by the Divine Spirit will be enabled to bring all peoples into the bond of unity. It is by the power of the Spirit that the Eastern World of spiritual thought can intermingle with the Western realm of action, so that the world of matter may become Divine.

It follows that all who work for the Supreme Design are soldiers in the army of the Spirit.

The light of the celestial world makes war against the world of shadow and illusion. The rays of the Sun of Truth dispel the darkness of superstition and misunderstanding." ...

 `Abdu'l-Bahá, Paris Talks, pp. 84-85