Dependency injection is a design pattern in which an object or function acquires other objects or functions on which it depends on. In other words, we can say a form of inversion of control, dependency injection desires to divide the concerns of constructing objects and using them, which leads to loosely coupled programs. 

Dependency Injection is an essential component of the Spring framework, via which the Spring container injects items into different items or dependencies. 

Two types of Dependency Injection are available in Spring Framework:
1. Setter-Based Dependency Injection, and
2. Constructor-Based Dependency Injection

So in this video, let's look at the detailed explanation of Spring Dependency Injection with some practical examples.

Spring dependency injection: https://www.geeksforgeeks.org/spring-dependency-injection-with-example/