Consciousness has a connection to entropy. Neurons use the lion's share of their metabolic energy pumping and exchanging cations. Neurons, like all cells, concentrate sodium ions on the outside of the cell membrane and potassium ions on the inside of the cell membrane. Neurons do this to the extreme, compared to all the other cells, using about 90% of their energy for this task.
This energy intensive action lowers the entropy of these two cations. If the ion pumping and exchange suddenly stopped, these segregated ions would slowly increase entropy, reverse, and blend until equal concentrations are reached on both sides of the membrane. This is the direction of maximum entropy. The neuron forces the ion entropy to go the wrong way; a constant energy intensive reduction of entropy.
If you look at all our sensory systems, their signals, into the brain, will cause neurons to fire. The firing of neurons increases the entropy of these cations by allow them to blend. Therefore, all sensory systems serve the needs of the second law. Our instinct to use our sensory systems to interact with the environment is there to increase entropy. Once the neuron fires, the neuron will again pump cations and reset the lowered entropy state of the neuron.
Consciousness is that awareness of the continuity, that is called "ourself", as it exists within a constant flux of change. Both conditions form at the neurons. The neuron reset after firing brings the neurons back to a base continuity. While sensory input to the brain, by increasing entropy results in change and complexity.
The building of memory is part of the second law which states that net entropy has to increase. We remain the same, but with new features added, by the flux of change; memory.
There is another feature connected to water. Sodium and Potassium ions, although both of a single positive charge, each impact water differently. Sodium ions are kosmotropic while Potassium ions are chaotropic. Sodium adds more order to water than pure water and Potassium adds more disorder to water than pure water.
Since water is about 85% of the body and this water is continuous and everywhere, including the brain, body and all cells, water is the great integrator, with the ionic tweaks of the brain, due to neuron firing and neuron reset, oscillating the base integration; consciousness.