The crisp statement conveys a universal truth. There are persons who care only for the present and have little thought for the future; so they seek to fulfill their useless whim and pleasure at great cost and may have to repent later for want of money even for bare necessities.
We do not care to know the value of our teeth as long as we can chew our food. Similarly, we often take pleasure in throwing away money as long as we have surplus money in hand. A man who abuses his riches in drinks, race and gambling, will in no time find himself pauper. The man who smiles while lighting a candle in the sun unnecessarily will weep before long, for he will have no candle left for the night.
Thus, we must save time, monkey and energy and make proper use of them for the sake of practical gain and happiness in future.