Time and Mind

Yesterday, somehow i got entangled with the idea of time. Not being a physicist i started to wonder.

Our notion of time (as loosely used by all of us) is built around the movement of the earth around the sun. Would it have changed if we presumed that it was the sun that went around the earth, probably not (assuming that the sun took almost the same time to complete one revolution. The moment i say this i get into cyclicality of using time to define time. Therefore, may be a better way to define time would be the relative position of objects with respect to our position (say the sun, the stars etc etc), and it changes as these 

objects move or we as objects move relative to them.

So, is time something really external to us? Should it be? We grow older, we age but then physics says if we travel faster than the speed of light we could age slower. What exactly do they mean. Could our body processes slow down? If yes how are they linked to something outside the body. What is it that is external to the body and that makes it move at the pace it does? More interesting is that an individual is separable from this external force (assuming that time dilation in physics is correct) and we could reduce/ remove the effect of this external force. 

The only thing that we know which moves with a speed needed to slow the processes is light and light has the character that it travels as packets of energy or photons and these packets do not have mass. The other interesting thing is that light also exhibits particle nature. This dual nature resides in the same light, can be a wave can be a particle. Now, the only thing that i can think of to connect to this analogy is that of a mind. Physically lets call it brain which has a mass and lets call thoughts the wave nature of the mind. What is the speed of thoughts (don't know)? Can it be measured (don't know)? But what could be said more solidly is that thoughts do not seem to have mass and are just packets of energy (arising out of our brain).

So where does this lead to? Am i trying to hint that we could move with the speed of light if we could somehow exhibit this wave nature? Probably yes. How? 

May be its time....