The word "doubt" has inevitably acquired a dark image. But doubting is a good thing. This "psychological process" is absolutely necessary, in particular, when "trying to see something invisible." By grasping the positive meaning of the word, we come closer to knowing the truth; we take the first step towards confirming what is the “right thing” to do.

Thanks to the progress of medical science, blood tests can now provide us with a considerable amount of information about our body condition. But if there are many ways to settle doubts about tangible things, I do not know of a good way to examine the intangible aspects of the human heart. Is there anything useful, like litmus paper, to at least assess whether it is acidic or alkaline?

None of us lives without doubt. It is only natural for us to worry about the health or business problems of family members, acquaintances and friends, thinking "possibly," "no way," "after all," and so on. There are days when I cannot sleep, days when I feel cheerful and worries are gone. We humans coexist with "doubt," consuming a considerable amount of energy converting intangible things into tangible ones.

Since President Trump cannot read the minds of others, he is swayed this way or that, unnerving the world. So, for ordinary people like us, it is nothing special to worry about trivial matters that pass over our heads. "Suspicion…" We sometimes wonder whether there is a demon in the dark, but in reality we jump at shadows.

People who have stormy faces, those who live out their days feeling uncertain or dissatisfied, are stuck in a dark cloud of stress constantly and fruitlessly seeking tangible justification for feeling the way they do. Negative intangible forces such as anxiety, mistrust, fear, and doubt are powerful levers turning the screw on people’s lives.

Whether or not war will break out next year, whether the big earthquake will strike, whether I will remain healthy, whether I can trust that person, whether I can find something lost: such doubts I sometimes indulge in, knowing very well it is also foolish to be always doubting.

I learned that a suspicious person who does not readily believe anything is called a Doubting Thomas. In the New Testament, Thomas, one of the twelve apostles, refused to believe in the resurrection of Christ until he saw the evidence with his own eyes. I would like to learn from Thomas and keep track of the truth at all times.