Abraham Maslow's theory of the hierarchy of needs places self-actualization at the highest level, representing the fullest realization of one's potential.

Person-centered therapy emphasizes the client's subjective experiences and aims to facilitate their personal growth and self-understanding.

Viktor Frankl's existential psychology explores the human condition and the search for meaning in life, addressing concepts like existential anxiety and the will to meaning.

Rollo May's book 'Love and Will' delves into the existential themes of love, freedom, and the pursuit of meaning and purpose in life.

Carl Rogers believed that therapists should be authentic and genuine in their interactions with clients, fostering a relationship built on empathy and understanding.

Self-actualization is a key concept in humanistic psychology, referring to the innate drive within individuals to realize their full potential and achieve personal growth.

Abraham Maslow's hierarchy of needs proposes a pyramid-like structure of human needs, ranging from basic physiological needs to higher-level needs for self-actualization.

Self-awareness is a fundamental aspect of humanistic psychology, emphasizing the importance of individuals understanding their own internal experiences and motivations.

Martin Heidegger, although not strictly a humanistic psychologist, influenced humanistic thought with his concept of 'being-in-the-world', which explores the relationship between individuals and their environment.

Unconditional positive regard is a core principle in person-centered therapy, emphasizing the therapist's acceptance and respect for the client, regardless of their thoughts, feelings, or behaviors.

Viktor Frankl's concept of 'existential vacuum' refers to the feeling of emptiness and meaninglessness that can arise from a lack of purpose or direction in life.

Self-transcendence involves moving beyond one's own needs and desires to focus on the well-being of others and the pursuit of higher values.

Viktor Frankl believed that individuals have the freedom to choose their attitudes and responses to life's challenges, even in difficult circumstances.

Self-awareness is a fundamental aspect of humanistic psychology, emphasizing the importance of individuals understanding their own internal experiences and motivations.

Abraham Maslow believed that creativity and play are essential for personal growth and self-actualization, allowing individuals to express their unique potential.