Hanuman was one particular of these 4 monkeys. This monkey group was instrumental in providing Rama key specifics of Sita. They served him establish a bridge throughout the seas, and cross about using a monkey army that properly stormed the demon stronghold and freed Sita. Lord Śiva mentioned to him: https://cristiandthtf.ageeksblog.com/36181449/the-best-side-of-krishna