This is the whole person paradigm from Abrahamic traditions.
We see mention of the "tree of life" several times in the testiments, for example it is mentioned in reference to the wisdom of Solomon:
Proverbs 3:18 refers to wisdom as a tree of life:
"SHE [WISDOM] IS A TREE OF LIFE TO THOSE WHO TAKE HOLD OF HER; THOSE WHO HOLD HER FAST WILL BE BLESSED."
I add this today as other life planning disciplines appear to explore ego, which represents unconscious recollections of thoughts, feelings and senses.
They ask questions such as:
"What is your earliest recollection of money?"
I don't think this is a "know thyself" practice.
Knowing yourself is to know your true self.
True self makes decisions based on values.
False self makes decisions based on beliefs.
Beliefs and values are not the same. Values are universal. Decisions based on values generally see better outcomes.
I deliberately do not explore the past. The point labelled "ego" here is also know as "false self". It is of the past. There might be reasons as therapists and coaches to go there with clients. But, I'm a planner. My focus is on helping my client "be their future self now."
The future self, or true self, is labelled "soul" on this diagram. It is the observer of thought, feelings and senses, in the now.
Wisdom is knowing your values.
Will is knowing your gifts and purpose.
Attention (focus, being present) and Judgement (choosing, decision making) represent a discerning process related to the soul.
The purpose statement inspires you. "IN SPIRIT".