You might be familiar with the terms "good" or "bad karma." You may hear people say, "I did something good/bad in a past life." It is said that everything you do is reflected back to you, so if you go through life sending out love, you will receive love. If you are full of hate, you will only find hate in others. The fact is that whatever vibrations we send into our aura, we attract people and situations of the same vibration.
If we do not stop this karmic cycle, it can create health problems and affect our entire lives, as well as the lives of our loved ones, which we bring into their birth. People can indeed have "energetic objects" such as past attachments and negative connections that have penetrated your aura—though they are not physically real, it is precisely an energetic intrusion. They sit in our energy system for life, gradually making their way closer to the body. When they reach the psychic body, they can enter through the chakras, causing illness.