Hanuman was just one of these 4 monkeys. This monkey team was instrumental in offering Rama important information about Sita. They served him create a bridge across the seas, and cross more than having a monkey Military that correctly stormed the demon stronghold and freed Sita. भस्मसादभवदैत्यो दुष्टचेष्टितमन्तकृत् ॥ २३ https://tantramantraaurvigyaan.com/