Fears can only arise when there are two

Ask yourself, "To whom do these doubts, fears and worries occur?" and they will vanish. Cease to pay attention to them. Pay attention to the Self within. Fears, etc., can only arise when there are two, or when anybody else exists apart from, or separate from, or outside you. If you turn the mind inward towards the Self, fears, etc., will disappear. If you try to remove a doubt or fear, another doubt or fear will arise. There will be no end of it. The best method to annihilate them is to ask "To whom do they occur?" and they will disappear. Destroying a tree by plucking its leaves one by one is impossible — other leaves will grow by the time you pluck a few. Remove the root of the tree — the ego — and the whole tree with its leaves and branches will be destroyed. Prevention is better than cure.

~ Bhagavan Sri Ramana Maharshi, Surpassing Love and Grace