Lomesh rishi visits the Pandavas

The sage said to Janmajeya - Listen, O descendant of Parkshit. When the four sons of Pandu were in the Kamya forest, the sage Lomesh came to see them. The brothers worshiped the sage and asked him the reason for his arrival.
The sage said When I went to see Indra one day, I saw Arjuna sitting on the throne of Indra. When I asked Indra about this, Indra asked me to tell you that Arjuna is fine. When his learning is over, he will join you. Arjuna has served Shiva and has got his blessings. He has gained the knowledge of the great Pashupati weapon. All the Gods have given their weapons to Arjuna.

Continuing, the sage said I have been asked to tell you that you should be going on a pilgrimage and should visit the pilgrim places. I have come to take you around the great pilgrim spots. I have been there a few times and will go again along with you. You will get your kingdom back.

Pleased to hear the news of Arjuna, the Pandavas and Draupadi agreed to go on a pilgrimage with the sage. 

Lomesh Rishi sees Arjuna

Arjuna started learning how to use multiple weapons. Chitrasen taught Arjuna the art of music and dance. One day the sage Lomesh came there and went to meet Arjuna. The sage was amazed to see Arjuna there, next to Indra. He asked How could a human sit in a seat which was a rare treat for the greatest of the sages.
Indra said to the sage You must be aware of the two great sages Nara and Narayana. Narayana is in Dwaraka as Krishna and this is Nara. Arjuna is here to learn how to use weapons. He has many tasks to perform.  Great Sage, I need your help. Go to the forest of Kamyaka forest where you will find Arjuna's brothers. Tell them that they should not worry for him. Take to the many pilgrim spots.