Hi, i have a question about shapes you can see when you are trying to get into LD. I woke up this morning, it was 6 am. I think it´s too late for trying some techniques, so i went to sleep normally. but, when i almost fell asleep, i started to see shapes. it looked like on my avatar, but much more simplier, only one “black” place and one “white” line around it and it moved (nice 
), what it was? again, i didn´t use any technique and i wasn´t in SP 
I’m pretty sure this was an HI which came much faster because you have already been tired.
so, if i fall asleep in this state, there´s a chance to get LD? 
It was probably HI, like Mefaso said. This doesn’t require any technique to induce, I experienced this when I was younger, about 11 actually. During that period of time I would run extensive amounts during the day, and took naps during the afternoon to release all that tension cause from it. During that time, I would have trouble actually falling asleep because my body was so tired, but my mind was active, which caused significant amounts of HI. I didn’t know what they were, but I knew it was natural, so I simply rested and stared at them until I either fell asleep, or knew I wasn’t going to be able to fall asleep, and simply got up.
There’s no correlation between seeing HI and lucid dreams other than the fact that it’s a step in certain techniques, therefor you wont have a lucid dream simply because you saw HI. However, this does mean that you will probably be more conscious when falling asleep, maybe resulting in a DILD because of that focus.