Greetings Watts! 
I am still oh too familiar with the vibrational and Astral winds state of OBEs. It's funny though, rarely do I ever get a actual "exit symptom" while Phasing. Phasing is a shift in consciousness while you are fully aware, from here to "there", without the "bells and whistles". This occurs during the act of "noticing".
About twice every two weeks I awaken at the onset of SP. It all starts the same way. I have slowed the process down so I could understand and be aware of every little occurrence during it. It begins with becoming "ultra" aware that something is about to occur. In the past I would always become aware deep in the a SP state with the vibrations already in full bloom. Nowadays, I become aware of the first hint that something is occurring. So, as I said, it begins with a high state of awareness. Then a slight vibrations, like a very soft electric shock will be felt. This shock is felt throughout my physical vessel. Next a energy pulse begins, starting at my head and working it's way down my body. This energy is not strong though. It is very mild at first, but that soon changes. The next thing is a sound. this sound sounds like some kind of higher pitch "whirring". As the sound gets louder the vibrations/pulse gets stronger. Then the two of them become a consonant, as of becoming in harmony with each other. Once they merge, there is complete quiet. No more vibrations, no sound at all. Just silence. Then I will feel my legs elevating and soon I am out. In the past, I would feel my legs being raised, then I was dragged down my hallway and out my patio window. That still occurs occasionally. But most of the time now, I just feel the "exit", as in my legs being raised, then I find myself out of my body. Very rarely do I see my immediate surroundings, as in my bedroom, etc. Nowadays, I just find myself somewhere else.
When you exit your body, you are not in your physical dimensional space anymore. You are in replica. But if you look around and become aware you will find fluctuations, things that are missing or added to what you know as your physical surroundings. This is why you saw a "dimensional outline" of your immediate surrounds, but what you saw kind of either appeared as a ghostly, fading in out image.
Once thing I read and immediately reacted to in your post was how you said when you had this occur, your thoughts went to "It is happening, it is happening". That my friend is a serious "no no". Still today I get caught by that. That is a deal breaker. You must learn to stay passively aware for now. Allow your curiosity to drive your experience.
You have had your initial "sneak peek". What you do now is up to you.
I am a huge proponent of Binaural Beats and Isochronic Tones. I have a strange sleep schedule. At least strange to most I know. I begin working on my Crystal Amplifier art each night at about 11:00. I will put on my headphones and listen to the "I heart Radio", while working on my design, until about 3am. I then go to youtube or my favorites and put on a Bin beat/Iso tone video for an hour. I call that my "wind down" time. I find myself in a LD almost nightly now. I attribute allot of that due to already being in a good "Delta" state before my head even hits my pillow. I find Bin beats/Iso tones to be a fantastic "brain entrainment" technique. They train you how to become aware of what the different brain waves actually feel like. They also teach you to "hold" your focus in those states for a good amount of time.
I remember when I first got into this practice, it would take me an hour and half, to an hour and about 45 minutes to actual even begin the onset of any exit symptom. Nowadays, through daily practice, it's not near that long anymore, "THANKFULLY", lol.
You are doing great. Keep doing what you are now. I always say, "if it isn't broken, don't fix it". All you need to do now is learn how to "allow" and passively observe. There will be plenty of time to question what's what,, afterwards. Create your "intent" and be off.
Lastly another good aide to use is "nightly affirmations". Just a simple "I am conscious in my Dreams, knowing I am Dreaming", becomes a great way of programming yourself to continue down this path.
Good luck and Safe Travels!

I am still oh too familiar with the vibrational and Astral winds state of OBEs. It's funny though, rarely do I ever get a actual "exit symptom" while Phasing. Phasing is a shift in consciousness while you are fully aware, from here to "there", without the "bells and whistles". This occurs during the act of "noticing".
About twice every two weeks I awaken at the onset of SP. It all starts the same way. I have slowed the process down so I could understand and be aware of every little occurrence during it. It begins with becoming "ultra" aware that something is about to occur. In the past I would always become aware deep in the a SP state with the vibrations already in full bloom. Nowadays, I become aware of the first hint that something is occurring. So, as I said, it begins with a high state of awareness. Then a slight vibrations, like a very soft electric shock will be felt. This shock is felt throughout my physical vessel. Next a energy pulse begins, starting at my head and working it's way down my body. This energy is not strong though. It is very mild at first, but that soon changes. The next thing is a sound. this sound sounds like some kind of higher pitch "whirring". As the sound gets louder the vibrations/pulse gets stronger. Then the two of them become a consonant, as of becoming in harmony with each other. Once they merge, there is complete quiet. No more vibrations, no sound at all. Just silence. Then I will feel my legs elevating and soon I am out. In the past, I would feel my legs being raised, then I was dragged down my hallway and out my patio window. That still occurs occasionally. But most of the time now, I just feel the "exit", as in my legs being raised, then I find myself out of my body. Very rarely do I see my immediate surroundings, as in my bedroom, etc. Nowadays, I just find myself somewhere else.
When you exit your body, you are not in your physical dimensional space anymore. You are in replica. But if you look around and become aware you will find fluctuations, things that are missing or added to what you know as your physical surroundings. This is why you saw a "dimensional outline" of your immediate surrounds, but what you saw kind of either appeared as a ghostly, fading in out image.
Once thing I read and immediately reacted to in your post was how you said when you had this occur, your thoughts went to "It is happening, it is happening". That my friend is a serious "no no". Still today I get caught by that. That is a deal breaker. You must learn to stay passively aware for now. Allow your curiosity to drive your experience.
You have had your initial "sneak peek". What you do now is up to you.
I am a huge proponent of Binaural Beats and Isochronic Tones. I have a strange sleep schedule. At least strange to most I know. I begin working on my Crystal Amplifier art each night at about 11:00. I will put on my headphones and listen to the "I heart Radio", while working on my design, until about 3am. I then go to youtube or my favorites and put on a Bin beat/Iso tone video for an hour. I call that my "wind down" time. I find myself in a LD almost nightly now. I attribute allot of that due to already being in a good "Delta" state before my head even hits my pillow. I find Bin beats/Iso tones to be a fantastic "brain entrainment" technique. They train you how to become aware of what the different brain waves actually feel like. They also teach you to "hold" your focus in those states for a good amount of time.
I remember when I first got into this practice, it would take me an hour and half, to an hour and about 45 minutes to actual even begin the onset of any exit symptom. Nowadays, through daily practice, it's not near that long anymore, "THANKFULLY", lol.
You are doing great. Keep doing what you are now. I always say, "if it isn't broken, don't fix it". All you need to do now is learn how to "allow" and passively observe. There will be plenty of time to question what's what,, afterwards. Create your "intent" and be off.
Lastly another good aide to use is "nightly affirmations". Just a simple "I am conscious in my Dreams, knowing I am Dreaming", becomes a great way of programming yourself to continue down this path.
Good luck and Safe Travels!
