Col. 3:1-4 (ESV)
If then you have been raised with Christ, seek the things that are above, where Christ is, seated at the right hand of God.  Set your minds on things that are above, not on things that are on earth.  For you have died, and your life is hidden with Christ in God.  When Christ who is your life appears, then you also will appear with him in glory.
Setting you mind on things above, and not on things of earth is harder done than said. We live here on earth and we have earthly needs and desires. We also have earthly responsibilities. Setting your minds on things above is not an excuse to divorce your wife and join a monastery for instance. (That actually happened quite a bit in the middle ages.) It isn’t an excuse to shirk your job and go live off the land in the desert.
However it is a good excuse to buy a good devotional book, like “Living with Christ” by Bo Giertz. And after buying said book it is a good excuse to read it daily. It is a good excuse to go to church on Sunday. It is a good excuse to take ten minutes on your lunch break and pray for your family and friends. In doing these things you train your mind to think of things above. It isn’t always easy, but it doesn’t have to be hard. Setting a little time aside each morning for prayer and devotions, it helps set your mind in the right direction. Then go to work, God wants you there too. Love your wife, take your kids to the park. Teach them about Christ.