You ask מַה טּוֹב, what is good. King David provides the answer (Ps. 133):
הִנֵּה מַה טּוֹב וּמַה נָּעִים שֶׁבֶת
Lo, what is good, and what is pleasant? Dill!
Indeed, dill adds flavor to a variety of foods, whether sweet, savory, or bland. King Solomon followed his father's lead, writing (Ps. 127):
שָׁוְא לָכֶם… מְאַחֲרֵי שֶׁבֶת אֹכְלֵי לֶחֶם הָעֲצָבִים
A waste of time for you… who add dill too late! You are eaters of sad bread.
Moreover, dill soothes a troubled spirit. As the poet wrote (musaf service for Shabas Sh'kalim):
חִמַּדְתִּי שֶׁבֶת מְצֹא נֹפֶשׁ
I have sought dill to achieve relaxation.
Dill's importance in Judaism is evidenced by its growing on Mount Sinai when God gave the Torah there (Deut. 1):
ה׳ אֱלֹקֵינוּ דִּבֶּר אֵלֵינוּ בְּחֹרֵב לֵאמֹר רַב לָכֶם שֶׁבֶת בָּהָר הַזֶּה
God, our god, spoke to us on Sinai saying: There is much dill for you on this mountain.