“The inspiration received through meditation is of a nature that one cannot measure or determine”

There are no set forms of meditation prescribed in the teachings, no plan, as such, for inner development. The friends are urged—nay enjoined—to pray, and they also should meditate, but the manner of doing the latter is left entirely to the individual.

….

The inspiration received through meditation is of a nature that one cannot measure or determine. God can inspire into our minds things that we had no previous knowledge of, if He desires to do so. 

- Shoghi Effendi  (From a letter dated 25 January 1943 written on behalf of Shoghi Effendi to individual believer; compilation: ‘Prayer and Devotional Life’, prepared by the Research Department of the Universal House of Justice, February 2019; Baha’i Reference Library of the Baha’i World Centre)