a break from the hectic cares of daily life
The poem's title indicates the speaker is dreaming at night. Dreaming could mean wishing or hoping as well as actually dreaming during sleep. In the lines, the speaker asks to stay "abroad". The speaker says that in the morning everything is "confused again; our cares, our toils our clamors are renewed." The speaker is saying that all the problems of the day return in the morning, but at night he/she gets a bit of a break.
We do not know what confusions the speaker has during the day. There is also no mention of needing a cause or a person.