Sometimes when I feel so lonely I think about a power which has created the world and all other creation and this power is certainly the God.
Religions always teach us to believe in a God that we haven't seen and they ask us to do some prayers to please Him but is God really resides in a religion?
Look at a leaf, its structure is very complex, it is functionality is very clear and it is beauty is very amazing, here a question raises that is this leaf created by itself or it is created by some other power, so if it is created by itself then how is it possible that it can produce oxygen what we need to live and its color should be green a eye favorite color and it must take in carbon dioxide!
Just by looking around you realize that this universe is arranged very neatly and precisely therefore nothing is created accidentally so the power which has produced this kind of perfect system is what we call God.
You don't need a religion to understand God, just by looking around you find God's reality but religions are a better means to understand Him and follow His orders the way He wants.
Believing in God give you peace in your heart so try to find Him and talk to Him then you will feel better.