Take a look at Muhammad's Methodology in this Hadith:
Step One: Appeal to people's desires by telling them about all the stuff they'll get in Paradise.
Step Two: Once they're drooling for all the stuff they'll get in Paradise, tell them to go slay the infidel.
Sunan Ibn Majah 4332--Usamah bin Zaid said: "The Messenger of Allah said one day to his Companions: 'Who will strive hard with sincerity for Paradise? For there is nothing like Paradise. By the Lord of the Ka'bah, it is sparkling light, sweet basil waving in the breeze, a lofty palace, a flowing river, abundant ripe fruit, a beautiful wife and many fine garments, in a place of eternal abode, in ease and luxury, in beautiful, strongly-built, lofty houses.' They said: 'We will strive hard for it, O Messenger of Allah.' He said: 'Say: In sha' Allah (if Allah wills).' Then he mentioned Jihad and encouraged them to engage in it."