indriyāṇāṁ hi charatāṁ yan mano ’nuvidhīyate
tadasya harati prajñāṁ vāyur nāvam ivāmbhasi|| 67||

My Understanding : Without practice, you cannot control your senses. These senses are influenced by the environment, and emotions like envy and hatred arise from them. As a result, your happiness fluctuates based on these external factors. However, when you learn to control your senses, you will discover peace and happiness in everything, regardless of circumstances.