What was the Charvaka school of thought?

The Charvaka school of thought, also known as Lokayata, was an ancient materialistic and atheistic philosophy. According to the class 6th social science NCERT, Charvakas believed that the only reality was what could be perceived through the senses. They rejected the concepts of an afterlife, divine beings, and spiritual practices, emphasizing the importance of enjoying life’s pleasures in the present. The Charvaka philosophy encouraged a focus on material well-being and criticized the rituals and sacrifices prevalent in other religious traditions of the time. This school of thought was a significant contrast to the spiritual and ethical philosophies like those of Buddhism and Jainism.

This question related to Chapter 7 Social Science Class 6th NCERT.
From the Chapter 7. India’s Cultural Roots.
Give answer according to your understanding.