February 17

...That truth is often imparted through dreams no one who is familiar with history, especially religious history, can doubt. At the same time dreams and visions are always coloured and influenced more or less by the mind of the dreamer and we must beware of attaching too much importance to them. The purer and more free from prejudice and desire our hearts and minds become, the more likely is it that our dreams will convey reliable truth, but if we have strong prejudices, personal likings and aversions, bad feelings or evil motives, these will warp and distort any inspirational impression that comes to us.... In many cases dreams have been the means of bringing people to the truth or of confirming them in the Faith. We must strive to become pure in heart and 'free from all save God'. Then our dreams as well as our waking thoughts will become pure and true. We should test impression we get through dreams, visions or inspirations, by comparing them with the revealed Word and seeing whether they are in full harmony therewith. 
- Shoghi Effendi  (From a letter dated 16 May 1925 written on behalf of Shoghi Effendi to an individual believer; compilation: ‘Lights of Guidance’)