After watching a Netflix marathon of clone wars I noticed that there is different ways in which the force can be manipulated. Some like the Jedi use more basic principals of the force including manipulation of individuals and pushing and pulling of souls. But the sith can use alchemy and the nightsisters can as well but without using the full potential of the force. So it begs the question, if the force is a open to all then why is it that only certain individuals or clans or groups use some or parts of the force. Is there something about it that only certain parts can be utilized with certain users and or parts of the force. Is the force like the spectrum of light? different wavelengths gives different abilities. Can only certain attuned individuals only tap into part of the spectrum kind of like dogs and people. Only dogs can hear lower frequencies but only humans can see color.