Imagine what it would be like if we didn’t have to worry about earning a living. Imagine if my parnassah (sustenance) was taken care of and I never had to worry about a bill again in my life. My life would be wonderful. There would be a sense of calm, equanimity, menuchas hanefesh (inner peace). No worries, it would be wonderful.
Explains the Chovos Halevavos, that’s what we say every time we bentch (recite grace after meals). Hazan es ha’olam kulo, Hashem, I recognize the fact that You are the One Who provides for all of creations’ needs. And explains the Chovos Halevavos, it’s almost built into the creation. If I invite you into my home you’re my guest, I have an obligation to take care of you. I welcomed you in, I asked you to come, I have to give you food to eat, I have to give you a place to sleep; that’s part and parcel of the understanding.
If it could be, Hashem feels that obligation to every one of his creations. Hashem created us, Hashem put us in this world, and Hashem, much like the host, feels an obligation to take care of our needs. And I have to understand that Hashem is the One Who is hazan es ha’olam kulo. From the monkeys swinging in the trees to the birds that fly, to every human being, Hashem feels a sense of achrayus (responsibility). Hashem takes care of my needs. I must spend within my needs, I can’t be excessive, but provided that I’m living a normal lifestyle within my means I rely on Hashem, I trust in Hashem. There are no worries because Hashem answers my cry, Hashem takes care of the bills, Hashem takes care of my needs.