So, you will notice that Buddhism is basically a religion of renunciation. To follow the path of Gautama, one has to realise the impermanence of this world and give it up to reach Nirvana.
‘Buddham sharnam gachhami’ – I surrender and follow the Buddha.
‘Dharmam sharnam gachhami’ – I walk on the path of righteousness or Dharma.
‘Sangham sharnam gachhami’ – I walk and cooperate in deference and surrender to the Sangha, the group in search of the Truth.