Passage
The sun ariseth, and they are gathered together: and they shall lie down in their dens.
The sun ariseth, and they are gathered together: and they shall lie down in their dens.
Psalms 103:20 Thou hast appointed darkness, and it is night: in it shall all the beasts of the woods go about:
Psalms 103:21 The young lions roaring after their prey, and seeking their meat from God.
Psalms 103:22 The sun ariseth, and they are gathered together: and they shall lie down in their dens.
Psalms 103:23 Man shall go forth to his work, and to his labour until the evening.
Psalms 103:24 How great are thy works, O Lord ? thou hast made all things in wisdom: the earth is filled with thy riches.
The verse centers on "ariseth", "gathered", "together", "shall", "down", and "dens". It is saying that the verse draws attention to "ariseth" and "gathered", so its meaning should be read from those terms before moving to application.
The nearby context moves from verse 21's "The young lions roaring after their prey..." into verse 23's "Man shall go forth to his work...", so "ariseth" and "gathered" belong inside that flow. In Psalms context, the local focus is worship, trust, the LORD's kingship, and covenant mercy.
A plain takeaway is to answer the verse's own emphasis on "ariseth" and "gathered" with trust shaped by these words, not by a vague optimism outside the passage.