Remember, Unity means:Wholeness
Look about thee at the world: here unity, mutual attraction, gathering together, engender life, but disunity and inharmony spell death. When thou dost consider all phenomena, thou wilt see that every created thing hath come into being through the mingling of many elements, and once this collectivity of elements is dissolved, and this harmony of components is dissevered, the life form is wiped out.
In cycles gone by, though harmony was established, yet, owing to the absence of means, the unity of all mankind could not have been achieved. Continents remained widely divided, nay even among the peoples of one and the same continent association and interchange of thought were wellnigh impossible. Consequently intercourse, understanding and unity amongst all the peoples and kindreds of the earth were unattainable. In this day, however, means of communication have multiplied, and the five continents of the earth have virtually merged into one. And for everyone it is now easy to travel to any land, to associate and exchange views with its peoples, and to become familiar, through publications, with the conditions, the religious beliefs and the thoughts of all men. In like manner all the members of the human family, whether peoples or governments, cities or villages, have become increasingly interdependent. For none is self-sufficiency any longer possible, inasmuch as political ties unite all peoples and nations, and the bonds of trade and industry, of agriculture and education, are being strengthened every day. Hence the unity of all mankind can in this day be achieved. Verily this is none other but one of the wonders of this wondrous age, this glorious century. Of this past ages have been deprived, for this century -- the century of light -- hath been endowed with unique and unprecedented glory, power and illumination. Hence the miraculous unfolding of a fresh marvel every day. Eventually it will be seen how bright its candles will burn in the assemblage of man.
Behold how its light is now dawning upon the world's darkened horizon. The first candle is unity in the political realm, the early glimmerings of which can now be discerned. The second candle is unity of thought in world undertakings, the consummation of which will erelong be witnessed. The third candle is unity in freedom which will surely come to pass. The fourth candle is unity in religion which is the corner-stone of the foundation itself, and which, by the power of God, will be revealed in all its splendour. The fifth candle is the unity of nations -- a unity which in this century will be securely established, causing all the peoples of the world to regard themselves as citizens of one common fatherland. The sixth candle is unity of races, making of all that dwell on earth peoples and kindreds of one race. The seventh candle is unity of language, i.e., the choice of a universal tongue in which all peoples will be instructed and converse. Each and every one of these will inevitably come to pass, inasmuch as the power of the Kingdom of God will aid and assist in their realization.
‘Abdu’l-Bahá, Selections from the Writings of ‘Abdu’l-Bahá, p. 31