Actually, you don't have to step on cassia seed. You can step on it like peas. For example, bigger pebbles are also good, because they are all used to massage the acupoints on the soles of the feet, because some people think that the distribution of acupoints on the soles of the feet corresponds to various parts of the human body, and massaging these parts is very helpful to your physical and mental health.

But I personally think it's best to be cautious, because some acupoints can lower blood pressure and blood sugar or raise blood pressure and blood sugar, and people with high blood pressure and blood sugar should use foot massage with caution.