The darkness of life starts at the surface. Things like bad weather, a lousy job, disrespectful people, and tragedies of various sorts. When you are living on the surface, even if you are happy now, unhappiness is just around the corner.
There is a different choice you can make. Like the water deep in the ocean, calmness of soul occurs in the depths of your being. You are a child of God and He loves you no matter the situations or circumstances. Though you have just lost a spouse, you can still be the solid rock of your family if you are inwardly strong. And even if your house has been wiped out by a raging flood, you can still be kind to others.
I believe that Scripture says it best in 1 John 4:4: Ye are of God, little children, and have overcome them: “because greater is He that is in you, than he that is in the world.” When the surface life is bringing nothing but darkness, be The Inward Person.