Prophet Muhammad PBUH is known as the last prophet in Islam, except for Nation of Islam, a branch of Islam embraced by the legendary boxer Muhammad Ali, where they believe the last prophet is a Muhammad was the last prophet of Allah, and that Elijah Muhammad ( Founder of NoI ) was a messenger.
Anyway, like all religions, the message is always to spread good, bring joy and happiness to others, if possible, guide them to the correct path. I remember reading an article on Islamic conversion, in the article it says the correct word is ‘Return to Islam’ and not ‘Convert to Islam’. After all, we are all God’s children, thus, we are all returning to the one and true religion.
There is a beautiful saying in Islam: “You may have the watches, but we have the time”. For those in the dark, it is projected that in 50 years time, there will be more Muslims in Europe than all the other faiths combined. Couple with the mass migration of refugees, this could accelerate the on going demographic change within this decade.