Correct

心扉

/ xīnfēi / 
Strokes

Definition

inner heart/soul

Example

As a Noun

heart of hearts

1
Kòurén
叩人
xīnfēi
心扉

strike the responsive chord of sb

2
Chǎngkāi
敞开
xīnfēi
心扉

open one's heart (to)