Trusting in Which God?

Remember that part at the end of Narnia, where the Calormene fellow ends up in heaven confused, saying he worshiped Tash and not Aslan? 

Yeah, that's bothered me, like, forever.

Today I bumped into an article about a Lutheran gal who converted first to Roman Catholicism, which then [she said] made it easy to convert to Islam.  She went on her pilgrimage to Mecca.  It's sad to hear the bondage of the rules which must be done to get your brownie-points for making the pilgrimage, and what you can do to get yourself an exemption to some of the particulars while still racking up your brownie-points.

The woman rightly desires a conviction that "God is all I need or will ever need."  She says that those who have that trust will never be worried or discouraged.  That's quite a lot of pressure to measure up to, emotionally and mentally.  But I suppose it's true.  IF I had perfect faith in Jesus, I would never be worried or discouraged.  But that ain't gonna happen.  That's why He loves and forgives sinners  -- we can't be confident and perfectly full of trustingness.

What comes after "God is all I need"?  Statements like these:
"I realize that this is something I have to work on every day."
And talk about feeling God's presence.
And, "Now that I have experienced this pure connection to God, I want to maintain and grow it. The onus is on me to make the changes necessary to help this happen."

I want to grow this connection with God.
The onus is on me.

What happened to "God is all I need"?



I've heard Christians say, "God is all I need," but then focus on their following, their works, their praying, their feelings, their efforts to grow?  Which God are they worshiping?  How is it different from the Muslim god?