O LORD, how manifold are your works!O LORD, how manifold are your works! In wisdom you have made them all; the earth is full of your creatures. Yonder is the sea, great and wide, creeping things innumerable are there, living things both small and great. There go the ships, and Leviathan that you formed to sport in it. These all look to you to give them their food in due season; when you give to them, they gather it up; when you open your hand, they are filled with good things. When you hide your face, they are dismayed; when you take away their breath, they die and return to their dust. When you send forth your spirit, they are created; and you renew the face of the ground. May the glory of the LORD endure forever; may the LORD rejoice in his works—who looks on the earth and it trembles, who touches the mountains and they smoke. I will sing to the LORD as long as I live; I will sing praise to my God while I have being. May my meditation be pleasing to him, for I rejoice in the LORD. (Psalm 104:24-34, NRSV)
This psalm is great because as we read this section we hear of all the wonderful things God does for all of his creation.
All creatures wait on the Lord for what they need and in due time he gives them what they need.
The other reason this particular passage of this psalm is wonderful is because it says that God created Leviathan for the sport of the sea. God has a wonderful sense of amusement and yet cares deeply for all of what he has created. Which means he will give us what we need.