Step 1: Understanding the Concept:
Pratityasamutpada is often called the "Heart of Buddhism." It explains the metaphysical nature of how all things come into existence and subsequently cease.
Step 2: Detailed Explanation:
The word is derived from Pratitya (meaning "having depended") and Samutpada (meaning "arising" or "origination").
This doctrine states that no phenomenon exists independently; every event arises in dependence on causes and conditions.
It is most famously detailed in the "Twelve Nidanas" (links), showing how ignorance leads to suffering through a chain of dependent causes.
Step 3: Final Answer:
The literal meaning is Dependent Origination.