open heart

open heart  {n.}

1. No hiding of your feelings; frankness; freedom.

She spoke with an open heart of her warm feelings for her pupils.

She told her troubles with an open heart.

Compare: HEART ON ONE'S SLEEVE.

2. Kindness; generosity.

She contributed to the fund with an open heart.

Mr. Jones has an open heart for underprivileged children.

Compare: OPEN ONE'S HEART.