Every thought and action create them. They cannot exist alone but only in relation to each other, to the context of the substance from which they arise. Energy requires a medium through which to express and affect change. Energy may demand attention. It may be subtle and silent. Waves and particles interplay in a never ending dance. The placid gives way to the violent torrent and then returns to stillness for a time. Any delusion of separateness the ripple may possess gives way. This is the seasonality of our lives.
Matter is the medium.
Attend to what matters.