Before and after each class we recite invocations. These invocations in Sanskrit create an energy conducive to concentration and internalization. By that, they are an integral part of the practice.
Here are the texts of these invocations in phonetic Sanskrit and their english translation.
Every invocation is closed by these salutations :
Om Shri-parama-gurave Goraksha-nathaya namah
Hari Om Tat Sat
Om namah Shivaia