Practice is Middle Way

After a retreat, a student asked Sifu.

Student : I felt myself full of energy and could not sleep after sitting. Does it mean that I have reached a very high level of spiritual state?
Sifu : Too much energy that hinders your sleep is a kind of sickness, not a spiritual state.

Commentary:

Practice means middle way. Too much and not enough is illusive thinking. Diamond Sutra says, "Anything arises in mind, don't attach". Eat when you are hungry. Sleep when you are tired. Just like this.