ForumforAstral
So, last night, when I first tried to astral project it went as follows. I got into a warm place, I lay down and first focused on my breathing, after I did this, i cleared my mind, and breathed more. after a little while, it felt as if the ceiling was expanding upwards, and after a few more minutes the sides of my room also expanded outwards. It wasn't long until I felt very small in comparison to the space I was in now, except it was in my mind. I then focused on the space right above me in my mind, and it was as if the space kept growing bigger and bigger, and I felt smaller and smaller, and eventually it began pulsing, and I could feel my heart rate increasing, and there was a sense of fear being instilled within me, and when I tried to will my astral self to leave my body, nothing happened, and when I opened my eyes, it was just me in my room. in the same place I was in before. Can someone please help me understand what I did wrong? or if I was even on the right path to begin with? Than you so much 
First Night.
Regarding these light patterns mentioned by him, is indeed pretty common to see orbs, rays of light and whatnot. I see it myself sometimes while meditating.
I really relate to you about the "tremble-ish" phenomenon, when the arms are numb, yet you feel as if they're slightly trembling, I presume this could be a form of vibration on its own way, but a weak one. This quite happens to me.
I only use binaural beats to deepen my relaxation, but some people report significant progress, so it's worth trying. It all depends on which methods you're working with.
Keep with your routine for now, if it doesn't show results after a while, try other technique. Don't worry too much about reaching the vibration stage, the intensity varies from one person to another, many people don't even get vibrations at all.