Final answer:
Humanistic approaches such as client-centered therapy and Drama Therapy are used to assist clients in self-actualization by building on their strengths and helping them find purpose.
Step-by-step explanation:
The type of therapy used with clients who are ultimately self-actualizing, focusing on building on their strengths and helping them find deeper meanings and purpose, is rooted in humanistic psychology. This approach includes client-centered therapy, developed by Carl Rogers, and it emphasizes the potential for good within all people. Rogers believed in providing an environment of unconditional positive regard, genuineness, and empathy to facilitate personal growth and self-actualization. Furthermore, Drama Therapy is mentioned as a form of psychotherapy that uses theater techniques to help clients work through various issues. This therapeutic approach enables clients to create alter egos to externalize and address their experiences, further empowering them to shape their personal narratives and meaningfully engage with their lives.