The most important thing is the mind. When you stop the mind, you stop the prana and that is technique number one. When you stop your prana, you stop your mind; that is technique number two. Technique three is when you stop your emotion, you control prana and mind both. These are the three ways: raja yoga, hatha yoga and bhakti yoga.
In bhakti yoga, you control your emotions and direct them to the higher self. Thereby the mind and prana are controlled. In raja yoga, by yama and niyamas, pratyahara, dharana and dhyana, you control the influence of your mind and consciousness and thereby you control the prana. In hatha yoga, you practise pranayama, kumbhaka, moola bandha, jalandhara bandha and uddiyana bandha, and thereby you control the prana. By controlling the prana automatically the mind is also suspended. In my opinion, not one but all three ways must be taken up because only one way is never an efficient way.