If our life was compared to a garden, and fears were the weeds that although inevitable, are able to be somewhat controlled with planning and effort, it might bring you pleasure when you see them bloom.
If your garden consisted of only flowers, although beautiful when they bloom and hopefully continue to sprout new blooms, only nurture your spirit for the moment. Now if your garden consisted of vegetable plants mixed in with flowers, you would have the additional benefit of the life-sustaining plants providing you food from what you have sewn.
However, the weeds representing fears, can change everything if not attended to because they grow prolifically, seem to sprout over-night and take away water and nutrition from your plantings. Your blooms could wither and die, or be weakened by the lack of care and produce less or no fruit to sustain you.
You might plant enough food producing plants to crowd out or keeps the weeds to a minimum as well as pull the weeds early, but that takes more persistent effort on your part.
The moral of this little story is that you need to protect your emotional well-being, and while enjoying the little things around you, you must always be wary of fears and negative thoughts that can plague your inner thoughts. You must be aware of and take action to challenge fears rather than avoid, take steps to deal with those people or situations that cause harm to your self-esteem if not weeded-out.