Because, in the time-space dimension, any man may tread on the yellow sun-mirror, and it is gone. Any cow may swallow it. Any bunch of ants may annihilate it.
This brings us to the inexorable law of life.
1. Any creature that attains to its own fullness of being, its own living self, becomes unique, a nonpareil. It has its place in the fourth dimension, the heaven of existence, and there it is perfect, it is beyond comparison.
2. At the same time, every creature exists in time and space. And in time and space it exists relatively to all other existence, and can never be absolved. Its existence impinges on other existences, and is itself impinged upon. And in the struggle for existence, if an effort on the part of any one type or species or order of life, can finally destroy the other species, then the destroyer is of a more vital cycle of existence than the one destroyed. (When speaking of existence we always speak in types, species, not individuals. Species exist. But even an individual dandelion has being.)
3. The force which we call vitality, and which is the determining factor in the struggle for existence, is, however, derived also from the fourth dimension. That is to say, the ultimate source of all vitality is in that other dimension, or region, where the dandelion blooms, and which men have called heaven, and which now they call the fourth dimension: which is only a way of saying that it is not to be reckoned in terms of space and time.
4. The primary way, in our existence, to get vitality, is to absorb it from living creatures lower than ourselves. It is thus transformed into a new and higher creation. (There are many ways of absorbing: devouring food is one way, love is often another. The best way is a pure relationship, which includes the being on each side, and which allows the transfer to take place in a living flow, enhancing the life in both beings.)
5. No creature is fully itself till it is, like the dandelion, opened in the bloom of pure relationship to the sun, the entire living cosmos.
So we still find ourselves in the tangle of existence and being, a tangle which man has never been able to get out of, except by sacrificing the one to the other.
Sacrifice is useless.
The clue to all existence is being. But you can’t have being without existence, any more than you can have the dandelion flower without the leaves and the long tap root.