Depending on the age of our body there are the weights we can lift. And while this is get older, when we come to the age at which the person begins to be considered an elder, then the weights begin to decrease again, and as time passes, our physical strength decreases gradually to reach zero. This is our nature; this is the function of life as a whole, in the trees, in the animals, etc.
Unlike nature, the life of living faith follows another course, in which no age is foreseen, and there is no abatement for the vital functions of our internal world.
While people, animals and trees reach their full productive age, and then everything begins to decline to end up in death, in the life of faith, in the body of faith, there is only ascendancy and increasing production of the fruits of faith, which is another law , a law of faith and not nature.
In the law of faith, the production of fruit of faith remains increasing, there is no mitigating process, and the decision of man must be interwoven and adapted to what Christ said: some things you understand and you lift today, in the future you will understand and lift more.
The decline in production that you see in nature can be good teacher but it is not to be mimicked.