Debug the PyTorch DataLoader source code to understand how data is pulled from a PyTorch dataset and normalized. Explore the impact of constructor parameters and observe the batch-building process. Follow along as the video demonstrates initializing the sampler based on the shuffle parameter, debugging next(iter(dataloader)), building batches using the specified batch size, retrieving elements from the dataset, and converting tensors to PIL images. Gain insights into the inner workings of PyTorch's data handling mechanisms and improve your understanding of deep learning data processing techniques.