April 3

Know thou, verily, all the doors are closed except the door of the kingdom of God! All the trees are without fruit except the Tree of Life planted in the paradise of God! All the winds are disquieting to the souls except the cup of the love of God! Every benefit vanisheth except the food of heaven. It is incumbent upon thee to partake thereof.

Verily, I beg of God to strengthen thee in these divine gifts, merciful bestowals and supreme favors. Exert thyself, so that thou mayest abundantly enjoy this glorious grace. 
- ‘Abdu’l-Baha  (‘Tablets of ‘Abdu’l-Baha, vol. 1’)