What Happened

I've been trying to have a lucid dream for a while. Last night, I got to sp and a few minutes later my arms and legs felt like they were rising. For a few seconds it felt like I was in my school, then I went into sp again and couldn't get the feeling that I was somewhere else back again. What happened?

Perhaps you got excited, and it woke you up? Trying too hard will end the dream

I haven't had a lucid dream in... oh, about half my life. But I think that answer makes sense.

In the only lucid dream I remember, I levitated and somehow couldn't go any higher. So I concentrated harder, but instead of flying higher I woke up.

I didn't get excited, but it just stoped. I was still in sp in the end though.