No, you dont have to be born from a witches or shamans bloodline. Artifacts do help connect you to whom you wish to communitcate with. But before you summon any spirits to the physical plane, purify your area so that negative energy and entities dont pass through the astral plane and make things hard on you and your family. If spirit summonings go wrong, hauntings happen and you might have to do a strong banishment spell to banish the negative energies. Oijia boards are good for communications, but like I said, purify it before you use it and after.