well, it's something that you have to slowly work towards. there are several methods by which you may start becoming more conscious in your dreams. one way is to say to yourself, in your head, while laying in bed before sleep... "the next time i'm dreaming, i want to remember that i'm dreaming."How can you decide to become lucid in dreams or not?
another way is... upon waking, remain as perfectly still as possible and attempt to recall as much of your dream as you can, after a few minutes or so begin writing down what you recall. these things help you get into the mindset of being conscious of your dream state.
the possibility of this depends entirely on what you believe the nature of dreams to be, its function, its purpose. it depends on what you believe you are being connected to during dreams.How is it possible you are in control of what you're dreaming...?
when i refer to danger, i was referring to those who attempt to commune with spirits, gods and goddesses etc. if you are not one who even believes that these kinds of things are possible, you will not see the danger. even those who rely on these sort of communications in order to compile information about the future cannot see the danger. when you come into contact with such entities, you cannot be sure what you are actually coming into contact with.How can it be dangerous? Especially since you are the one who decides what's happening, right?
i feel that because we as humans are limited to a certain level of consciousness at this point in our evolution, it is not wise for us to pursue any sort of relations with spirits or gods or goddesses other than the Prime Creator, the Divine Lord God. the best way to communicate with our Creator is to allow it to communicate with us. we do this by knowing who we are, why we are, honoring our emotions, consuming unaltered creations(foods) and surrounding ourselves with Love. when we allow these things to resonate in our being, communicate with us and serve their purposes, we can never be out of step with God and we feel no need to access extracurricular knowledge. we are already receiving all the energies that our body, mind and soul requires.
so often, people attempt to be spiritual by doing all sorts of rituals and channeling. things get complicated and you don't know what you are becoming a part of. it's best to keep things simple, in my opinion.
understanding these things depends upon what you believe to be true about the nature of life, dreams, spirits and the spirit world. if you don't believe that these things are significant or real, you will not understand the importance.