Passage
(if indeed ye have heard of the administration of the grace of God which has been given to me towards you,
(if indeed ye have heard of the administration of the grace of God which has been given to me towards you,
Ephesians 3:1 For this reason *I* Paul, prisoner of the Christ Jesus for you nations,
Ephesians 3:2 (if indeed ye have heard of the administration of the grace of God which has been given to me towards you,
Ephesians 3:3 that by revelation the mystery has been made known to me, (according as I have written before briefly,
Ephesians 3:4 by which, in reading it, ye can understand my intelligence in the mystery of the Christ,)
The verse centers on "grace", "indeed", "heard", "administration", "been", "given", and "towards". It is saying that the verse draws attention to "grace" and "indeed", so its meaning should be read from those terms before moving to application.
The nearby context moves from verse 1's "For this reason I Paul prisoner of..." into verse 3's "that by revelation the mystery has been...", so "grace" and "indeed" belong inside that flow. In Ephesians context, the local focus is grace, union with Christ, the church, and new creation.
A plain takeaway is to answer the verse's own emphasis on "grace" and "indeed" with trust shaped by these words, not by a vague optimism outside the passage.