If you want to know Him, do divination with your spirit guides t I confirm it is wise to do. If They say yes, just do it with the regular observances of respect and intention. He's awesome. The first time I communed with Him, His energy was dramatic, almost overwhelming were it not for the fact that I suddenly felt incredible. Like pure Columbian snow. As I was leaving the ritual the image of the hanged man tarot card suddenly came to mind. Mentally I heard, "this is me, this is my card.." sort of message. In mideaval times the customary punishment for one who had betrayed their overlord was to be hung from the ankle and left to die. In the card, the hanged man stares at you with total composure and calmness with one leg bent behind the other, instead of flailing around like someone who is helpless would do. To me, Lucifer is the god of knowledge, logic, science and standing up for what you know to be true. In the Christian mythology, Lucifer betrayed god. But he did without shame or fear, as the hanged man shows no regret. Ironically it foils the imagery of Jesus. He had the balls to defy God itself, despite knowing there would be punishment. It wasn't a 'fall', it was a calculated dive in the name of truth and justice. Sort of a self sacrificial stand He made as He invented equal rights.
I'm not sure how experienced you are but I'll leave you with this tidbit;
You don't need to fear the big ones being mean to you. Their energy can be intense and at first they do it on purpose to test you. The main risk of diving I to the deep end early with Lucifer or Satan is that alot of beginners don't understand how They communicate. Until you have developed skill in scrying or you happen to be naturally clairaudiant, They speak in thoughts. In time you can distinguish thoughts that are your own from thoughts from outside and you can recognize the tone of a spirit and know who it is. So if you asked Them to guide you or make you stronger and wiser, wich is the main thing I ask for, and They tell you to do or not do something, you need to listen or They will loose respect for you and put you on Their ignore list. It might be better to start with minor spirits or archangels and I'm saying that as a theistic satanist.