They are just manifesting a different frequency, which is not harmonious with your frequency. There are many notes on a piano keyboard - some are harmonic and others are not. It feels really good when you resonate with a person on the same frequency because they make you feel full of energy and good about yourself. Someone with a disharmonic frequency can take energy from you and leave you totally exhausted. It's your choice.
Dimensions are a manifestation of frequency.
Some people say we are in the fourth dimension, and others say we are just entering that dimension. My understanding is that we entered the fourth dimension in 1972 or the beginning of 1973. There was a change in frequency at that time that pushed some of us into the fourth dimension. I believe something happened on the Sun in 1972, and whatever happens on the Sun is reflected back to Earth. I was told by my guidance, at that time, that as we moved through the fourth dimension it would be very challenging because we would have to look at our dark side, and integrate it into the light by releasing all fears, resentment, and guilt.