Zadkiel first appears in the Kabbalah dominating the 4th Sephiroth, named Chesed on the Sephirotic Tree. This dimension corresponds to grace, benevolence, and compassion. It represents the unconditional love and kindness manifested by Divinity upon Earth.
The Sephiroth Tree is a representation of the multiple astral planes and pillars of the universe. There is a different Archangel by every pillar who guards each threshold to a higher the higher spiritual realms. A soul can advance to such levels through the process of reincarnation. The more advanced the spiritual level, the more “trials” one has to pass within their lives to grow.
In the Bible, Archangel Zadkiel is the one who stopped Abraham from sacrificing his son, Isaac.
Zadkiel has a tremendous amount of wisdom, his energy can be compared to a king, strong and wise, a soul with many years of experience.
That is why Zadkiel is also known for spreading the ideal of tolerance in the hearts of mankind.