take to heart
lay to heart
To be seriously affected by; to feel deeply.
He took his brother's death very much to heart.
He took his friend's advice to heart.
the heart of the matter
Суть дела; существо вопроса. "Вот где собака зарыта".
Why are you shouting at each other? What is the heart of the matter?
Почему вы кричите друг на друга? В чём суть дела?
to one's heart's content
To the extent of one's wishes; one's complete satisfaction.
There is a wonderful small restaurant nearby where you can eat to your heart's content.
wear one's heart on one's sleeve
pin one's heart on one's sleeve
put one's heart on one's sleeve
To show your feelings openly; show everyone how you feel; not hide your feelings.
She wears her heart on her sleeve. It's easy to see if she is sad or happy.
Sometimes it is better not to pin your heart on your sleeve.