Dimensional levels are not so much places but vibration levels of being. As an example of this when you are feeling sad your awareness is vibrating on a lower frequency and the bubble of your aura is interfacing with the tools available to you so you see and notice sad things and because like a piano string when struck it vibrates and causes the ear to vibrate in sympathetic response and the tone is translated into you awareness. So the "sad" in this example is a frequency that vibrates out from the heart Chakra and has a sympathetic response from the universe in kind.