To become “associates” of ‘Abdu’l-Baha “in servitude” to Baha’u’llah’s “Holy Threshold”

Verily, I hope from God that ye may become my associates in servitude to His Holy Threshold and my partners at the entrance of the Door of His Oneness; so that ye may equally serve in His great vineyard. Then thank ye your Lord, for He hath favored you with this manifest success. By God, the true One! this cannot be equaled either by the dominion of the world or by the gift of ruling over all regions with pomp, glory and power! Reflect ye upon the chosen ones of God in the earlier ages! How their worth was unknown during their days; how they were known by people as but ordinary individuals and unimportant persons! Afterwards, their arguments appeared, their lights scintillated, their stars beamed, their trees became lofty, their mysteries gleamed forth, their fruits were praised, their reservoirs became overflowing, their gardens adorned, their birds warbled and their joy became perfect in the Kingdom of their Beneficent Lord. (‘Abdu'l-Baha, Tablets of ‘Abdu'l-Baha v2, p. 274)