In plain words
There is no fruit that merit or demerit brings. No lunar day, no customary rite of the world, has any hold. Go beyond all such actions, and leave the customs of the world behind in every way.
Word for word
There is no fruit yielded by merit or demerit, nor any binding lunar date or customary worldly rite. Abandon all such actions; relinquish worldly observances in every way.