To be emotionally committed to, enthusiastic about, or devoted to an activity, task, or relationship; to apply one's wholehearted effort or affection to something.
Examples:
EN: heart: have one's heart in one's throat
HI: रख लो एक कोने में दिल के
EN: Tureng - have one's heart in one's mouth - Turkish English Dictionary
HI: तुर्की के दिल से गौलाश - नुस्खा
EN: to have one's heart in one's mouth / throat
TE: have at one's finger tips కరతలామలకంగా/స్పష్టంగా తెలిసి ఉండు
TE: set one's heart on మనసు పెట్టు/లగ్నంచేయు
EN: One cannot have one's heart in two places at once.