Islam is everything about everything. It is information, knowledge, guidance, blessings, whatever it is that human beings may possibly crave or need in this world.
Or in the next world for that matter.
That means, to live a most Wonderful Life in This World, and then to go on to live a Most Wonderful Life in the Next World, what you need is Islam.
And you don't need anything other than or more than Islam. For, there is nothing "other than" Islam in this world. And of course nothing "more than" Islam.
Of course, most Muslims are unaware of this, which makes it a tragedy.
And most non-Muslims are also unaware of this, which is a perfect recipe for making this world the kind of Right Royal Mess that it is.
Wal Asr. Innal Insaana Lafi Khusr.
Zaharal Fasaadu Fil Barri wal Bahri Bimaa Kasabat Aydinnaas.