Krishna says, "The ๐ฅ๐ช๐ง๐ช๐จ๐ (spirit) within this body is said to be the Witness (๐๐ง๐๐จ๐๐) , the Consenter (๐๐ฃ๐ช๐ข๐๐ฃ๐ฉ๐) , the Supporter (๐๐๐๐ง๐ฉ๐) , the Enjoyer (๐๐๐ค๐ ๐ฉ๐) , the Great Lord (๐ข๐๐๐๐จ๐ฌ๐๐ง) and also the Supreme Soul (๐๐๐ง๐๐ข๐๐ฉ๐ข๐) " (13.23). Space is the best example to understand this intricacy. It's called by different names depending on the character it attains like a room, a house, a pot etc. Essentially, there is one space and the rest are its manifestations.
Krishna assures, "Those who understand the truth about ๐ฅ๐ช๐ง๐ช๐จ๐๐ , ๐ฅ๐ง๐๐ ๐ง๐๐ฉ๐ (nature), and the interaction of the ๐๐ช๐ฃ๐๐จ (three modes or characteristics) born out of nature will be liberated regardless of their present condition" (13.24). Things happen in ๐ฅ๐ง๐๐ ๐ง๐๐ฉ๐ because of ๐๐ช๐ฃ๐๐จ and the ๐ฅ๐ช๐ง๐ช๐จ๐ experiences them as pain and pleasure. This realisation is nothing but liberation from the misery of swinging between pain and pleasure.
Krishna earlier explained about liberation from a different angle and said that ๐ ๐๐ง๐ข๐๐จ (actions) in all situations are performed by the ๐๐ช๐ฃ๐๐จ ; one who is deluded by ๐๐๐๐ฃ๐ ๐๐๐ง thinks 'I am doer' (3.27). One who knows that ๐๐ช๐ฃ๐๐จ interact with ๐๐ช๐ฃ๐๐จ , is liberated (3.28).
This liberation includes freedom to do anything and thus runs into the argument about how can society survive if the actions termed as sins or crimes are allowed. This argument permits nurturing the seed of hatred through suppression as long as it is not expressed. But Krishna says drop that hatred itself and harmony with existence would happen automatically.
A miracle called the human body which hosts about thirty trillion cells and another thirty trillion bacteria is the best example of such harmony. We don't have to make any special efforts to maintain this harmony. It happens because of the oneness the body feels and liberation is nothing but the realisation of oneness all around.