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So far we have been observing individuals as separate individuals. Now we must look at them gathered together as a whole. And the first point we note is that though each individual has his own unique individuality, whether he be plant or man, all are kept together as a single whole. We have seen the individuals battling with one another, competing with one another, struggling against one another. But that is only one side of the picture. Just as remarkable as the way in which they have to resist one another is the way in which they depend on one another. Their interdependence is, therefore, the point we have now to note.
Since Darwin drew our attention to the struggle for existence and survival of the fittest, the perpetual strife in Nature has been clear enough. But hard, selfish, cruel, brutal though the struggle frequently is, though the strong will often trample mercilessly on the weak and let the unfit go to the wall without any consideration whatever; yet the very strongest and fittest individual could not survive for a moment by itself alone. And what is just as remarkable as the struggle between individuals is their dependence upon one another.
All plants depend upon the natural elements—the soil, water, air, and light. Animals depend on plants. And many animals depend upon other animals. A forest tree in its maturity is covered with blossoms, some conspicuous, others inconspicuous to sight, but very conspicuous to smell. These blossoms, either by sight or scent, attract butterflies, bees, moths, and other insects to sip their nectar, and in so doing carry away the pollen of the flowers, and unwittingly pass it on to another flower and fertilise it. The insect thus enables the tree to procreate its species. But the butterfly, after sipping the nectar of the flower of the tree, deposits its eggs on the under surface of the leaves, and the leaves give nourishment to the caterpillars into which these eggs develop. Besides this, the flowers, having been fertilised by the insects, develop into fruits or berries containing seeds; and these fruits, berries, and seeds form food for monkeys, birds, bats, and rodents. In quarrelling for these many are dropped and form food for mice and others below. Birds, finding food so near, pair, build their nests, and bring up their young in its branches. And in addition to the birds which are attracted by the berries, fruits, and seeds, other birds which are attracted by the caterpillars come there and build their nests. Without the flowers the bees would be starved; without the bees or other insects the flowers would not be fertilised and the tree would not perpetuate itself.[*]
[*] I take this illustration from Rodway's "In the Guiana Forest." It applies equally to any tropical forest.
The lives of all individuals, whether plants, beasts, or men, are thus curiously interwoven with and interdependent on one another. They are also dependent upon the chemical elements in the soil and air. And even then the dependence does not cease, for they depend, too, upon the light and heat from the Sun. And the Sun itself, and this Earth as well, are subtly connected with the whole Stellar Universe.
It is only within limits that any individual can be regarded as a distinct and separate entity. It has its own unique individuality, it is true. But it is also connected with all the rest of the forest and with all the rest of the Earth, of the Solar System, and of the Universe. Each individual is to some extent dependent upon all other individuals. All influence and are influenced by all the rest. There is mutual influence everywhere. And all are connected in a whole—the whole influencing each individual and each individual influencing the whole.
So besides the resistance of individuals to one another, there is attraction. Besides conflict there is co-operation. Besides independence there is interdependence.
The life of the forest thus forms a whole. Individuals have their due allowance of freedom. But they are kept together in a whole. Running through the individuals in their ensemble, binding them together, in spite of the tether they are allowed, must therefore be some kind of Organising Activity. We cannot look into that marvellous forest life without seeing that at the back of it, working all the way through it, controlling, guiding, inspiring every movement, is some dominating Activity, which, while allowing individuals freedom for experimenting by the process of trial and error, yet keeps them all bound together as a whole. And when we note the evidence of purposiveness everywhere so abundant, we cannot resist the conclusion that this Activity also gives direction.
It is not necessary to suppose that this Activity emanates from any thing or person outside Nature. It may perfectly well exercise its control and guidance from within—just as the activity which is "I" controls, consciously or unconsciously, directly or indirectly, the movements and actions of every particle of which "my" body is made up. But what we cannot but assume is that throughout this prolific and marvellously varied forest life, through every tiny plant and every forest giant, through every leaf and petal, through each little insect and every bird and butterfly, through the wild beasts of the jungle, the wary forest folk, and the most cultured men—through each and all and the whole in its collectedness there runs some kind of unifying Activity, holding the whole together, ordering all, dominating all, directing all—just as the orchid-spirit holds together and directs the activities of each particle which goes to make up the orchid; or the eagle-spirit directs the activities of each particle which goes to make up the eagle.