People with a small heart get fast intimidated about silly things. The reason? They put themselves above all, and when they find their ego is hurt, explode over silly reasons. On the contrary, people with a big heart take things lightly, not that it is because they lack any emotions or feelings, but down the heart, they manage their emotions that will create a comfort zone for others. We find such persons to take in confidence.
But it would take real effort to control emotions, that requires a heavy dose of humility for a big heart. People with humility will never complain such stuff, they feel unjustifiable. Instead, they look around at the problems and see how best it can be tackled. To conclude, it’s a matter of patience and humility that makes room for a big heart, that brings people together in unity.