The book "4 Lectures on Internal Philosophy" is the 5th book by Vasilis Papadoliad and deals with topics that belong to the broader field known as Internal Philosophy.

The lectures, which can also be considered the subject of more than one talk or a single one, touch upon the following topics:

1. The Structure of Human Personality (as approached by Internal Philosophy)

2. Internal Philosophy and the Evolution of Man (or in other words, how Internal Philosophy helps mankind)

3. The Internal Tradition of the West (and the symbols we have learned to see around us)

4. Symbolism as a tool for understanding (through examples such as the labors of Hercules or the zodiac cycle)