According to Osho, feelings aren’t in the “heart” (a poetic myth); like thoughts, they’re centered in the head, yet they’re more deeply rooted in the body’s biology and hormones, so they bind more strongly than thoughts. Whether you call it empty heart or empty mind, the work is identical: disidentify and witness everything until only pure awareness remains.
Feelings aren’t in your heart; your head processes them but your body powers them, so just watch them without clinging.