Seasons

Nature has seasons.  A tree, plant, flower and such have times when they blossom, bloom, sprout and grow, and then times when they seem to die or be dormant, barren.  Nature has its ups and downs.  So why not us too, since we are part of this universe. a species among species?  Cannot it be normal for us to have down times and up times, times of energy and times not so much?  Why does every day have to be an up day?  Why take drugs to feel better?  Why not just say it is a winter day for me, or a winter hour, and let it be or pass?  Just as nature needs these seasons to grow, maybe we do too.