The most important aspect of successful psychotherapy is the between client and therapist.

therapeutic alliance

Explanation:

Psychotherapy is a great ally for those seeking to improve emotional aspects. In addition to offering help in times of distress, the technique derived from psychology also allows a greater understanding of life issues.

The most important aspect of successful psychotherapy is the therapeutic alliance between client and therapist. This therapeutic alliance refers to a relationship of trust between the client and the therapist, where the client feels comfortable talking about their problems, knowing that the therapist will listen, understand and not make false judgments.

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answer; the above is true;