A majority of our life is spent living in three states of consciousness - awake, dreaming and asleep.
These states are represented by our conscious mind, subconscious mind and unconscious mind or the three levels of consciousness. In the 'awake' state of consciousness, we are able to experience everything around us through the power of our five sense organs.
Again, during the 'awake' state we engage in a number of activities. The opposite of this is the 'asleep' state of consciousness, where we are unaware of what is happening around us. In between these two states we are neither awake not asleep but dreaming or partially conscious/aware of what is happening around us.