It's a inflection to feel. It means perceiving, noticing, realizing, suffering, suffering, deploring. It can also mean getting excited, crying, regretting, repenting. Sense has many meanings : Aptitude, ability, faculty, reason, judgment, discernment, as well as affected, sore, hurt, offended. It feels, it generates a lot of emotion. Another meaning is direction, trajectory, route, orientation, heading.