Metaphysics can be defined as that branch of philosophy that studies reality in its most comprehensive scope and fundamental principles. It is the science that tries to determine the real nature of things.
The thesis is an attempt to examine critically the metaphysical foundation of knowledge in Igbo philosophy. It shows that metaphysical knowledge is accessible by the Igbo mind as against Kantian postulation that metaphysical knowledge is impossible. The Thesis goes further to prove that in Igbo metaphysical worldview, the mind or reason can penetrate the unknowable world to discern the things in themselves as against Kantian postulation that reason is incapable of piercing into the domain of things in themselves.
It also shows that the synthetic apriori knowledge is some thing that is common to both Igbo metaphysical thought and Kantian critical Philosophy.