In psychotherapy, patients have to deal with the tension between confessional relief and confessional shame all the time. It has been shown that the length of therapy and the strength of the therapeutic alliance, the bond between the patient and the therapist, are two major factors that affect self-disclosure in psychotherapy. As SPT indicates, the longer patients spent time with their therapists, the broader becomes the range of issues being discussed, and more topics are marked with depth. The greater the depth of the discussions, the more likely the patient feels being vulnerable. Therefore, the trust built over time among the patient and the therapist is essential to reach a mode of deep discussion. To strengthen the alliance, cultivating a comfortable atmosphere for self-disclosure and self-discovery is important.