Often reserved for the end of one's practice or study, the following is a profoundly blessed Vedic mantra:
Om Purnamadah Purnamidam Purnat Purnamudachyate
Purnasya Purnamadaya Purnamevavashisyate
That is fullness. This is fullness. From fullness all things come. Never was there a time fullness did not exist, never will there be a time when fullness is not present. Such is the nature of Life.