Example sentences:

Ramayana: On hearing about Ravana’s repeated atrocities from the earth, the celestials expressed their solidarity, and they unitedly prayed to Vishnu to descend and deliver them. 

 Mahabharata: The gambling match, in which Yudhisthira blundered egregiously, was the greatest test of solidarity for the Pandavas. 

 Bhagavad-gita: When Arjuna admits his inability to control the mind, Krishna expresses solidarity while also encouraging him to keep striving with an appropriate process.