I think I was close to a WILD

OK. A few minutes ago I got up from bed because of a failed attempt of a WILD. I'll go ahead and start from the beginning of my day. OK, I wake up at 5:12 this morning and attempted a WBTB since I have a snow day today. That failed. I woke up around 12 noon and I stayed up for a while. The thought of LD is just so great so after an hour or two, I wanted to attempt a WILD. OK, now this where the details are, I start by relaxing my whole body. I was doing it in a way where I was like talking to my subconscious. I know I'm weird, I like talk to myself for a living but, I was also "talking" to my subconscious about going to sleep but still keeping awareness. Every once in a while when I exhale, I imagine a wave of relaxation starting from my head and just slowly goes down to my feet. Now, after about 20 minutes of relaxation, I start to get a "swirling" feeling and I keep my thoughts to a minimum. Then, I start to feel as though a box is being put on my head. I continue the relaxing thing, then out of nowhere, I start to see a vague field of colors. I mean, as soon as I notice them, I snap back and I'm doing the relaxing thing. I don't know how to prepare myself for this because It's like so random and I don't know when to expect it. It's like I feel I'm not thinking of anything and I start to loose awareness of my body and then that's when I get those field of colors and such. This feeling only lasts half a second tops. I thing this is the closest I've ever gotten to a WILD and I just don't know how to prepare myself for that random feeling. Can anyone please help me here? Thanks.