This is something I just found out, and felt the need to write down...

We definitely can draw dark energies, entities and spirits into ourselves without any influence whatsoever from external sources. Prolonged states of anger, rage, resentments, bitterness, vindictiveness, and many types of fears, will draw and attract these negative energies. It's normal to get angry or fearful when things happen in our lives. These occurrences do not draw the dark side in to us. It's the long-term and prolonged states that set up the energetic attraction. Ongoing repressed negative emotions can eventually turn into a certain type of entity.

Negative entities, spirits, and dark energies can be picked up almost anywhere where negative people, emotions or thoughts exist. They are drawn to negatives. Therefore you can pick these up at meetings, in stores, at any type of gathering, or in your own home. At times when individuals have suffered prolonged pain in a certain place, the energies of this pain can remain there even though a person has left that place.

Violence of all types, physical, emotional and mental is a very powerful draw for negative and dark types of energies. The regular use of drugs and alcohol also draws these types of energies. Now one glass of wine is a social habit and does not affect our energy fields. However, when we become drunk, be it from alcohol or drugs, our auras becoming weakened substantially and negative invaders are attracted to the energy set up by this state. Smoking also greatly weakens the energy field and leaves us very vulnerable to negative influences

Source: ayuok.com