Passage
have your mind on the things [that are] above, not on the things [that are] on the earth;
have your mind on the things [that are] above, not on the things [that are] on the earth;
Colossians 3:1 If therefore ye have been raised with the Christ, seek the things [which are] above, where the Christ is, sitting at [the] right hand of God:
Colossians 3:2 have your mind on the things [that are] above, not on the things [that are] on the earth;
Colossians 3:3 for ye have died, and your life is hid with the Christ in God.
Colossians 3:4 When the Christ is manifested who [is] our life, then shall *ye* also be manifested with him in glory.
The verse centers on "mind", "things", "above", and "earth". It is saying that the verse draws attention to "mind" and "things", so its meaning should be read from those terms before moving to application.
The nearby context moves from verse 1's "If therefore ye have been raised with..." into verse 3's "for ye have died and your life...", so "mind" and "things" belong inside that flow. In Colossians context, the local focus is Christ, faith, and discipleship.
A plain takeaway is to answer the verse's own emphasis on "mind" and "things" with trust shaped by these words, not by a vague optimism outside the passage.