We must learn to appreciate everything around us, and everything in the universe, including the cycles of life and death.
We are all Buddhas already, we were already of our true nature, we just have to return to it. We must understand this, and we must understand that we will only become enlightened when we stop trying to become enlightened.
Knowing inevitably all life on Earth as we know has a beginning and an end, we should all learn to appreciate the fleeting moments we do have here with ourselves, with others, and with nature.
We can better use the space in an atom, the space in the universe, and the space in our brains. More than you think can be realized while just sitting in zazen, devoid of goals.
Perhaps the carefree, beautiful summer grasses we enjoy in our own backyards were once the location and the result of past battles for freedom or independence.