Humanity, and indeed planet Earth, is on a path of spiritual evolution. Life forms on the planet don't just randomly evolve. There is an underlying directive force in the universe, firstly a push towards outer limits, then a returning inwards to the limitless. This is all spread across a vast expanse of space and time.
Life on planet Earth appears at the far end of the spectrum of density. By density, I mean density of spirit. What we call matter is more like an appearance of limited, separated, dense spirit. It is the far end of the vibrational universe, where forms become more separate, dense, seemingly more limited, and less interactive and flowing. So life forms on planet Earth appear of a denser, solidified nature. Yet they are evolving to become freer, less limited and less dense. The natural interaction of forms at this far end of density is to be hardened and clashing, less collaborative and more competitive. Hence the survival of the fittest. Seemingly separate life forms compete against each other.
Nevertheless, animals on planet Earth are highly developed life forms. They've evolved, and they're evolving towards increased intelligence and awareness. Animals just see the world as it is. They've not progressed to the stage where humans are at yet. Humans have reached the stage where we can think about the world, label things, define things, and understand cognitively how the world works. I'm reminded of the 'Tree of the Knowledge of Good and Evil' mentioned in Genesis in the Bible. It's where humanity has moved on from the basic animal nature to thinking, gaining knowledge, and gaining self awareness, a recognition that 'I am this body'. In some ways it can seem like a step back, out of the blissful unaware state, into thinking, worrying, and seeing the challenges and difficulties of 'me and the world'. At this stage the ego develops - the mind's sense of being a separate being, defending its borders, strengthening its position, and asserting its importance. This ego nature rules the human world. It's an evolutionary step forward, but certainly not the culmination of evolution.
The next step for humanity is to develop this 'self awareness' further. For all humanity's confidence in its sense of being right, all its knowledge and conceptualising is inaccurate. It's sense of self is misplaced. Its sense of right and wrong, good and evil, is a separating of the world. The sense of separation, of me and the world, is flawed. Truly there is no separation. This appearance in planet Earth of many different life forms is illusory. It leads humanity to believe that separation is real and the ego is right. But it's not. These many life forms can also be considered as one planet expressing itself in seemingly many ways. There comes a change of perspective. A deeper understanding, that there is not 'me and the world'. There is only this.
As self awareness continues to develop, it turns inwards. It turns from seeing the world of many separate forms. It turns from the difficulties of competing against the world. It turns to a recognition of the underlying Oneness of what appears to be a multiplicity. As the ego nature continues its development it is recognised that the greatest ego is not the one that dominates and wins, it is the one that surrenders itself in service to the whole. The greatest ego gives up itself, reduces its sense of importance, lets go of its belongings and ideals, to bring peace to the world. In religious terms this can be recognised in the sacrifice of Jesus, giving up his life to save others. It's a move towards dropping the limits and defenses of the ego, in favour of the Oneness of the whole.
This next stage of evolution is in letting go of the limits that seem to define. Recognising that limits are illusory. There is only One Infinite Being, expressed as many beings and non-beings. What Is is expressed as what is and what is not. But truly there is only What Is. Humanity evolves to a point of enlightenment, where the separate individual, the ego, is seen to be false, and the Oneness of What Is is realised.