Hi Grave.Disorder, first to answer your question about a method/and or methods you may think about to both control and perhaps fine tune your abilities:
I have found that the first step is to more regularly meditate in a controlled and well structured method; try doing this every day/night and in so doing you will hopefully notice that you are able to open and quieten your self, both physically and spiritually.
Keep a "Paranormal/Spiritual" Diary and review this regularly, but this should only act as a confirmation of what you should know within yourself, that you are positively improving in your abilities.
Members of the Forum, including myself, can help and support you as well.
The Spiritual Realms we come across are very diverse and there is much we still don't know, so what you have seen may reflect just that; you may have tapped into another Realm.
Alternatively what you see in your visions may only be a "metaphor" for something else. The Paranormal is very much reflected by who we are as individuals.