I was in the process of falling asleep, as i would any night, my mind wandering, and i believe it was the point where the astral double projects. Right before this, I saw a strobing white light. This was different than seeing my brow chakra which usually pulsates slowly from green to purple, and was fast like a strobe light. I woke up and immediately sensed a presence. I am not sure if it was actually something or mind manifested, but is this common on the verge of sleep? Is this my astral self making it's nightly exit? Thank you.