Seth dream meaning is explained below using 2 different sources. Each interpretation is shown with its source.

Interpretation 1 — Ibn Seerin

(The prophet Seth, upon whom be peace.) Seeing God’s prophet Seth, upon whom be peace, in a dream means prosperity, contentment, blessings, joy, children, honor and a happy life by God’s leave. Seeing him (uwbp) in a dream also means becoming a guardian over a blessed and an important child, or it could denote an important appointment one will manage with decency, integrity and honor, for the prophet Seth, upon whom be peace, was the first appointed guardian on earth.
Source: Islamic Dream Interpretation Author: Ibn Seerin

Interpretation 2 — Margaret Hamilton

Chosen by god
Source: Dream Dictionary Unlimited Author: Margaret Hamilton