This Luke passage mentions that being a disciple of Christ costs something (vv.23-26). The other writers of the Gospels thought it important enough that they echo (Matt. 16:24-27, Mark 8:34-38) Luke’s words.
Jesus’ message is a paradoxical command that His are to freely give up their self-gratification, their cravings for pleasure, and their own security and live for and serve others. I know from personal experience when I’m of some benefit to others, it brings with it a feeling of well being, of having a purpose to my living. Of course, we don’t do it alone. Other Christians are there helping us along the way. So, also is God (Heb. 12:1-2).