Go the speed of sound... And get the gist of why there ain't no hand in Minecraft PE Lite.
Step 1: Spawning
Spawn in a flying world in any PE Minecraft world. Any world will work as long as it is a PE flying world. WARNING: DO NOT do this in a PC world because you can break bedrock and this is crucial not to mess it up this way.
Step 2: Preparing
Dig a 1X1 hole all the way to bedrock layer. Don't move after that.
Step 3: Starting
Fly straight up for a very long time. I did it for three min.
Step 4: Performing
Stop flying and immediately drop down. The tool you are using will be pulled out and floating, indicating that you have broken the light barrier.
Step 5: After Effects
None, except that the fact that all of the light properties are working: 1. You won't see your hand. 2. You won't see the ground until .5 second after your in it. 3. Space would be reacting.