GRIT (ONE'S) TEETH

clench or grind (one's) teeth in anger or determination. —Academy Level IV Glossary, —OEC - Suppressives and GAEs Glossary Appr. 25 Feb. 91

clench or grind (one's) teeth in anger or determination. But actually, the Clearing Course, if a person is - follows procedure and does grit his teeth and try to handle or disconnect his environment, he can make it through.