Peace!

There's something about doing something, anything for that matter, for the sake of Allah that leaves you so assured; very calm. He has the vast knowledge of the unknown and will only grant what's best for you, whether it's in this life or the eternal one. Faith restores your happiness and tranquility. Trusting him with every little detail of life makes a smile not so hard to crack. A connection, a relationship with the Creator enhances security of the soul. Doubts and worries won't completely disappear because those are natural human instincts, but that belief that God is in control of it all, that he says be and it will be, blows away those instincts ever so swiftly!