Tawakkul: Trust in God
Al-Ghazali describes the heart resting on God while the hands keep working. Worry about tomorrow usually grows from a quiet conviction that everything depends on your own arrangements holding up. When that weight shifts, the planning continues, but the tightness eases, because the outcome was never yours to carry.
The birds go out hungry and come back full: trust still goes to work
A saying of the Prophet, and one al-Ghazali leaned on. Many people hear trust and picture sitting still, so they either overwork to feel safe or stop trying at all. Ordinary effort keeps its place in the day, while the result of it arrives from a hand the worker does not control.
Straining for what is already guaranteed while neglecting what is asked of you: effort in the wrong place
Ibn Ata Allah wrote this line about misplaced energy. Anxiety pours strength into matters already handled and leaves none for the part of life that is asked of you: honesty, patience, care for the people near you. Seeing the split drains the pressure out of the wrong worry.
Ibn al-waqt: The child of the present hour
Sufis call a person a child of the hour they are standing in. Fear almost always lives in a day that has not come yet, spending today's strength on a bill that is not due. Attention comes back to the hour at hand, which usually holds enough to do and enough to meet.
Zuhd: Doing without
Zuhd means holding what you have loosely. Under most money worry sits a sense that your life equals what you can secure, so any threat to the supply feels like a threat to your existence. When the two come apart, losing some of what you own stops feeling like losing yourself.