When you are perceiving sounds with closed ears (inside the head), seeing lights with closed eyes and feeling the energy.. it marks the connection to the higher dimensions.
In your dream state, you are beyond the third dimension. A spark of intuition always comes from a higher dimension.
To strengthen the connection with the higher dimensions, we have to work on the connection itself. If you are more sensitive to the energy, you could be aware of your energy body at all times. If you could see lights, you could spend more time on that during meditation. One can be constantly be aware of the inner sounds, amidst the external noise.
Staying tuned to the higher dimensions shall accelerate your personal shift!