Hanuman was a single of those four monkeys. This monkey group was instrumental in offering Rama important information about Sita. They helped him create a bridge through the seas, and cross about using a monkey Military that correctly stormed the demon stronghold and freed Sita. भस्मसादभवदैत्यो दुष्टचेष्टितमन्तकृत् ॥ २३ ॥ https://remingtonaxsmh.nizarblog.com/37816427/the-basic-principles-of-mohini