Where did spirituality/religion come from, and where is it going?

[Aquaplant]

Originally Posted by Human No More

Both other sentient species, and posthumans (people who have surpassed human physical/mental limitations to the point of being difficult or impossible to compare to unchanged humans).

Well animals are the only other sentient species within our sphere of influence at this time, although their scale of sentience varies on how one wishes to define it. While animals are unable to speak or think the way we do, they share many of the same basic instinctive psychological functions, so they should be treated relatively same to other human beings.

But how on earth does one surpass one's physical limitations? Mental limitations are usually the result of physical limitations, so I'll just focus on the latter. I mean how does one change their physical status that incomparable to vanilla humans? While mutations are the only way to really change oneself physically, even that occurs usually during early body development and is not feasible after the body has reached it's intended state. Physical surgery is another thing, but one can't really drastically improve when building on already limited foundation, unless mechanical augmentation is used. But as I said, I was looking for a tangible example of what is actually possible at this stage of development.