How does dream interpretation distinguish itself from fortune telling?

I sporadically encounter "Islamic dream interpretation", e.g., there are tools online such as MyIslamicDream.com , eDreamInterpretation.com , Islamic-Dreams-Interpretation.com and more can be found using Google. This surprises me, as (a) there seems to minimal difference between engaging in dream interpretation and engaging in fortune telling, (b) dream interpretation is not haram , and (c) fortune telling is a sin (listed as a major sin by al-Dhahabi ): > Say, "None in the heavens and earth knows the unseen except Allah, and they do not perceive when they will be resurrected." -- Qur'an 27:65 > > [He is] Knower of the unseen, and He does not disclose His [knowledge of the] unseen to anyone. -- Qur'an 72:26 > > "The Messenger of Allah said: 'Whoever... goes to a fortuneteller and believes what he says, he has disbelieved in that which was revealed to Muhammad.'" (sunnah.com ) Islam Q&A even likened fortune telling to shirk. **Question**: How does dream interpretation distinguish itself from fortune telling?