I do not interpret dreams. However, it does not take an interpreter of dreams to say that this dream is a true one; since it clearly shows the effects of aayat al-kursi and adhaan. So, there is no need for you to be concerned about it; rather you should be happy.
The Prophet (peace be upon him) said, "Nothing remains of prophecy except true visions, which a believer may experience (from time to time)." (Reported by Bukhari) Your vision resembles one of them. I would therefore urge to never to be slack in your performance of salah or practice of dhikr. The Qur'an and the Sunnah reiterate the fact that the best protection against the evil spirits is dhikr; it is also the sure means of drawing close to Allah, and thus achieving tranquility and peace of mind.
I pray to Allah to honor us all to be practice dhikr and thus come close to Him.