I once heard that Satan cannot present himself in the form of a Dove (because the Dove is the symbol of peace/spirit). I was wondering if he could/couldn’t also mimic peace? If I remember correctly it is because Satan is so wrapped up in chaos that he couldn’t so much as mimic calmness yet alone peace.
Satan’s tricks are indeed often mimicks of what Heavenly Father offers. For me the best way to tell the difference is to ask myself, “how long will this choice affect me?” For many things, the rewards of sin may imitate those of obedience. When they do, however, they are selfish and temporary in nature. The consequences of obedience have always lasted longer and brought true peace and happiness to my life as opposed to the satisfaction and selfish joy that comes from focusing on my own desires.
That leads me to another way to tell the two apart, usually. Most of the time, the right thing to do is to think of other people and their needs first, their concerns, their feelings. Selflessness has always been a hallmark of the Gospel of Christ. There are times when you do need to look to your own needs, of course. However looking to other’s needs first tends to keep your own needs in true perspective.