The mind is full of thoughts, ideas, judgements, beliefs based on the lens the mind filters the real world through and the story it has created for us to live by. So what we think is the truth, is really just that, a thought in the mind, a mental form that the mind has created that comes and goes like all forms.
Absolute truth lies beyond the mind. Search deep within you when you are conscious, when you are still, when the mind is quiet. Like wisdom, love, peace, joy, truth comes from within our true being, from our soul and spirit. There lies the absolute truth.