From the Trees for Life Site: ( https://treesforlife.org.uk/forest/forest-ecology/decomposition-and-decay/ )
“In our modern-day human culture, decomposition and decay have often come to be viewed quite negatively, with the former mainly associated with things that are rotten, have a bad smell and are generally symptomatic of death, while the latter is similarly viewed as very undesirable, whether it be in terms of urban decay, or, on a much more personal level, tooth decay. However, they are vital processes in nature, playing an essential role in the breakdown of organic matter, recycling it and making it available again for new organisms to utilize.
Decomposition and decay are the yin to the yang of growth, and together they form two halves of the whole that is the closed-loop cycle of natural ecosystems. Everything dies, and without the processes of decomposition and decay the world would quickly become not only overflowing with the remains of dead plants and animals, but also would experience a decline in new growth, due to a shortage of nutrients, that would be locked up and unavailable in the dead forms.”