You need not fear the darkness. He is the Light of the World. Even the darkness is light to Him--as bright as the shining sun.
You need not fear your doubts, your "whys," your struggles. If anyone--even you--lacks wisdom, let Him ask of God who gives it in abundance--and is always delighted that you have come to Him to ask.
You need not fear the loneliness. Whether you sense it or not, you are moment-by-moment wrapped in the everlasting arms of inescapable love.
You need not fear your failures--whether they are embedded in your past or flourishing in your present. You are more than a conqueror through His love for you--His irreversible victory over sin, and His eager forgiveness even for the nights you sat by the fire and fearfully betrayed Him. Even as your heart condemns you, His understanding of your love for Him is greater than your heart.
You need not fear for those who have gone off to pursue the riches of this world--its approval, its praise, its materialism. its pleasures, its "freedoms," its illusions. He knows how to bring the wanderer home--even if the path must lead to the empty loneliness of the pig sty. Keep the fatted calf handy.
You need not fear an unknown future--it may be worse than you've imagined. But the One who never forsakes or leaves His child alone will be with you--His unseen hand doing good for you in light of the inheritance He has planned for you--your future with Him, the never-ending glory.
You need not fear the intimidation of the roaring lion--He has been crushed by the Lion of the Tribe of Judah--your Savior, your God, your Father.
You need not.