Hanuman was one of such 4 monkeys. This monkey group was instrumental in providing Rama crucial details about Sita. They aided him build a bridge through the seas, and cross over using a monkey army that properly stormed the demon stronghold and freed Sita. भस्मसादभवदैत्यो दुष्टचेष्टितमन्तकृत् ॥ २३ ॥ मुकुन्दोऽपि https://franciscoeibsj.blogstival.com/59007979/the-single-best-strategy-to-use-for-kali