Early Christians objected to lust not because is produces ecstasy but because the ecstasy produced is a substitute for something real. Lust turns us from the hope of long-lasting bliss to animals who procreate and die. Lust can become an all-consuming cloud with unrealistic expectations and fantasies. Those who are supremely fortunate are the ones whose hearts are clean, who have beautiful innocence, because they are the ones that have the ability to look on God. Do we desire the lasting or the transient?
Colossians 3:1-3 (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.
Matthew 5:27-30 (ESV)
“You have heard that it was said, ‘You shall not commit adultery.’ But I say to you that everyone who looks at a woman with lustful intent has already committed adultery with her in his heart. If your right eye causes you to sin, tear it out and throw it away. For it is better that you lose one of your members than that your whole body be thrown into hell. And if your right hand causes you to sin, cut it off and throw it away. For it is better that you lose one of your members than that your whole body go into hell."