St. John of Kronstadt comments on the sacrament of Confession:
“Bear the sufferings and painful smarts of the operation so that you may regain your health afterwards. It means that at confession you must declare all your shameful deeds to your confessor, without concealment, though to do so may be painful, shameful, ignominious, and humiliating. Otherwise the wound will remain unhealed, will ache and be painful, will undermine your spiritual health, and remain as a leaven for other spiritual infirmities, or sinful habits and passions. A priest is a spiritual physician. Show him your wounds, without being ashamed, sincerely, openly, with son-like trust and confidence; for the confessor is your spiritual father, who should love you more than your own father and mother; for Christ’s love is higher than any carnal, natural love. He must give an answer to God for you. Why has our life become so impure, so full of passions and sinful habits? Because a great many conceal their spiritual wounds and sores, owing to which they ache and become inflamed; and it is impossible to apply any remedy to them.” (My Life in Christ, p. 170)
