Some months before I found Christ - many years ago now - I heard Paul Robeson sing an old negro spiritual.
"There is a balm in Gilead
To make the wounded whole;
There is a balm in Gilead
To heal the sin-sick soul."
The phrase "sin-sick soul" spoke to my heart. There is only One who can provide healing here. A psychiatrist might shed some light on the need. A psychotherapist might give some idea of its effects. But only Jesus can dispense a cure.
It's like a nasty sports injury. It's painful, and you long for a balm to ease away the pain. Unlike a sports injury, it's not a physical pain. "Come unto Me," says Jesus, "all you who are weary and heavy laden, and I will give you rest."
"Come," he says. Don't think it over. Don't philosophise about it. Do it.