The concreteness of truth has three meanings:

1) Truth is not abstract. Any truth is the unity of objectivity, absoluteness and relativity, that is, any truth is objective truth, absolute truth and relative truth.

2) Truth is conditional. Any truth has its specific object, scope and conditions. If we go beyond this specific provision, truth will become fallacy.

3) Truth is a process. The concrete existence of truth is a process. Truth is regarded as an endless approach from subject to object and from subjective to objective. It is a historical development process, not a static state that will never change once it is reached.