He exercises his pectoralis minor muscle at the gym every day.

I was filled with his kindness.

He acknowledged his mistake and self-reflected by placing his hand on his chest.

He admitted his mistake and decided to deeply self-reflect.

We should always remember the power of Kannon in difficult times.

The multifidus thoracis muscle is a part of the back muscles, mainly involved in stabilizing the spine.

The semispinalis thoracis muscle is a deep muscle in the back that supports movement from the neck to the waist.

He started exercises to strengthen his sternocleidomastoid muscle.

This ancient proverb, 'know the other side and yourself, and you will not be in danger in a hundred battles', teaches us the importance of understanding ourselves and others.