evolution

Hi. this is my first blog too . .

I am thinking about this question of how / when / why do we evolve?
Did we evolve in the old days for survival reasons? or just by simple chance? over what span of time? generations?
Maybe if I developed a too long thigh bone, this is what enabled me to run far, catch fast food . .?
I've heard that we evolved sweat glands, and that actually made room for our voice box which enabled us to develop sound and language . . . was there a reason for this? what was / is driving this reason?
I guess my question is, in this consciousness that we potentially have, what is our purpose?
to catch better food? to survive the blistering heat? to be able to find water?
Is there an underlying survival agenda driving us?
Drive? desire? agenda? imperative? what could lead us where?
If not survival, then . .
Bliss? Disolution? No differentiation? Complete integration of individual and whole?
utter - fill - ment?
How do we choose? decide? what shall we do then?
ah, the great matter.
to be aware, and yet, to follow

and also, I note that when we are playing up there on stage, there are about a hundred evolutions every minute -- if we slow down enough to notice them . . we are creating language all the time - with a gesture of the chin raising up or a snicker to the side . . when do we just speed pass all these tiny accidents of creation . . when do we follow them and let them be the seeds of our language? our evolution? with no pre-determined goal? or the goal of creating a culture?

evolve: to unroll, derive, educe, develop, work out, to produce by natural evolutionary processes, emit
evolution: a process of change in a certain direction: unfolding, the action or instance of forming or giving something off: emission, a process of continuous change from a lower, simpler, or worse to a higher , more complex, or better state: growth, a process in which the whole universe is a progression of interrelated phenomena . . .