The universe is governed by law, infallible, immutable law, and if not, what sort of universe would it be. We accept this fact knowing it to be such, and through our studies in astronomy we are able to foretell to the very minute any happening in the future. Eclipses occur at computable periods, and we know these to the minute.
Everything happens on time, on exact schedule, and we accept this fact because we know that it requires law to operate anything in other than haphazard fashion.
The seed is planted in the ground, it requires the materials of the earth, the light of the sun, warmth and moisture, the things that we recognise as elements necessary to the growth of the seed into a plant or tree, and while we may wonder at this unchangeable arrangement, yet we are more apt to accept the fact as demonstrated by Nature and let it go at that.
But have you ever stopped to think of this arrangement by which Nature perpetuates herself?
Congress of animals produces progeny, if the basic essentials to this are present; not otherwise. Nature again reproduces herself according to immutable law. Growth is part of this law, depending on the conditions that must be present for growth.
Animal life develops to a certain standard of size for each species, then stops growing, but does not the same process continue? When the animal has reached the average size designed by Nature, is the law of growth then suspended?
So far as increase of stature is concerned there is no further operation of the law in evidence, but it goes on according to the same conditions as obtained for increase in stature, for the body dies daily and is daily replaced with new material, and still this law of growth applies as repairs have to be made, as new material has to be elaborated and built into the body for repairs.
All this goes on without our conscious knowledge, yet we know somewhere in the depth of our consciousness that it does go on, for we see the visible parts of the body change, as the hair, the nails, the skin, and we realize that we are never really through growing, except as relates to stature.