From the Writings of 'Abdu'l-Baha

Do ye know in what cycle ye are created and in what age ye exist? This is the age of the Blessed Perfection and this is the time of the Greatest Name! This is the century of the Manifestation, the age of the Sun of the Horizons and the beautiful springtime of His Holiness the Eternal One!

The earth is in motion and growth; the mountains, hills and prairies are green and pleasant; the bounty is overflowing; the mercy universal; the rain is descending from the cloud of mercy; the brilliant Sun is shining; the full moon is ornamenting the horizon of ether; the great ocean-tide is flooding every little stream; the gifts are successive; the favors consecutive; and the refreshing breeze is blowing, wafting the fragrant perfume of the blossoms. Boundless treasure is in the hand of the King of Kings! Lift the hem of thy garment in order to receive it.

If we are not happy and joyous at this season, for what other season shall we wait and for what other time shall we look? 

- 'Abdu'l-Baha  ('Baha'i World Faith – ‘Abdu'l-Baha Section')