New moons are traditionally a time of cleansing, preparation, and planting. Those rituals may have evolved from early farmers' observations that seeds planted during the new moon grew better than those planted at other times, which lead to new moons becoming a time of sowing.
This can be a fruitful approach to incorporate into modern lives. While most of us don't have literal soil to till, our bodies are our
gardens and our wills are our gardeners, (Shakespeare said that) so tending to them with the diligence and affection we might bestow on a garden is both a beautiful perspective and a healthy habit.