Shabbat vs. Rosh Chodesh

Hi,

This is a paraphrase of an idea:

Shabbat follows the six days of work, and a person's path during the six days of work is what merits the light of the sanctity of Shabbat. As the gemara says, one who works on erev Shabbat will have food to eat on Shabbat.

Rosh Chodesh, on the other hand, is at the start of the month. We have not yet performed deeds to merit the illumination of Rosh Chodesh, but this day, which comes after the moon has been reduced, hints to a person to recognize that he lacks light, and if he does not work and accept responsibility for the future, he will come in darkness and go in darkness and gain nothing for his struggle.

(The Sochachover, Shem m'Shemuel Reeh 5677, pg. 105)

Have a great day,
Mordechai