Lets start with beginning when Ram and Lakshman in search of Sita reach near city name as Kishkindha .Lets understand meaning in Hindi and English
आगें चले बहुरि रघुराया। रिष्यमूक पर्बत निअराया॥
तहँ रह सचिव सहित सुग्रीवा। आवत देखि अतुल बल सींवा॥1॥
भावार्थ:-श्री रघुनाथजी फिर आगे चले। ऋष्यमूक पर्वत निकट आ गया। वहाँ (ऋष्यमूक पर्वत पर) मंत्रियों सहित सुग्रीव रहते थे। अतुलनीय बल की सीमा श्री रामचंद्रजी और लक्ष्मणजी को आते देखकर-॥1॥
Rama again marched off at the head of the group. They approach the mountain named Rishyamuk. There stayed Sugriva with all his ministers, Seeing Rama and Lakshman of unlimited powers
* अति सभीत कह सुनु हनुमाना। पुरुष जुगल बल रूप निधाना॥
धरि बटु रूप देखु तैं जाई। कहेसु जानि जियँ सयन बुझाई॥2॥
भावार्थ:-सुग्रीव अत्यंत भयभीत होकर बोले- हे हनुमान्! सुनो, ये दोनों पुरुष बल और रूप के निधान हैं। तुम ब्रह्मचारी का रूप धारण करके जाकर देखो। अपने हृदय में उनकी यथार्थ बात जानकर मुझे इशारे से समझाकर कह देना॥2॥
Sugreev was afraid, addressing Hanuman said he, “Listen, these two are house of power and beauty. Take form of a celibate, go and observe, convey to me findings, your heart does preserve
Conclusion
Sugriva send Hanuman to know if Ram was sent by his brother King Bali.In the beginning Sugreev is represented has powerless person who has lost self confidence . He is also afraid of his brother Bali may kill him . In our life too we come across situations when instead of working hard and develop confidence we lose our moral that result into failure rather than success. This can also be explained is that if we adopt negativity or blame ourselves that also is not good as this thought allow us to think nothing can be improved .
Also, in such situation we may not recognize who is our true friends and every step we don’t believe and adopt careful approach .
This is important to understand that Sugreev has friend like Hanuman still he was worried . I think the reason is simple till Ramji blessed Hanuman and do friendship with Sugreev then only they developed confidence and earned great respect from other people.
In summary always count on our blessings and trust our capability by hardworking aptitude at the same time be humble like Ram who all the power but lived a simple life.