This is the 12449th most frequent Turkish word.
hissediyorsa
"If he/she/it feels."
Here, 'hissediyorsa' acts as a conditional verb expressing a feeling ('mutlu') that triggers an associated action ('yüzü güler').
Eğer mutlu hissediyorsa, yüzü güler.
If he feels happy, his face smiles.
In this sentence, 'hissediyorsa' is used to describe a conditional feeling ('samimi') influencing people's interactions ('kurarlar').
İnsanlar samimi hissediyorsa, birbirleriyle daha iyi iletişim kurarlar.
If people feel intimate, they communicate better with each other.
Here, 'hissediyorsa' expresses the condition of feeling successful, contributing to the learning process being effective ('ilerler').