Not too long ago, a few weeks perhaps, I had one about trying to have lucid dreams. Since I could control everything it wasn't hard to "induce" lucid dreams within this lucid dream. The initial lucid dream felt like real life until I looked around, after quite a bit of time, and noticed my room was in the layout it was about five years ago, and then woke up. The other dreams I had within are somewhat memorable as well, but more hazy. Felt so real, too.