Ok so I have a question about DJs and HIs.

If I keep a DJ and write down all the dreams I remember will that help me remember my dreams while I sleep?

And is there anyway I can increase my HI imagery? I can sometimes do it, like if I think of something I can see a picture of them but only for a split second. I need to know how to increase my HI images so I can try to enter dreaming easier. Or something like that...but I really could use some help with this.