mind, heart, spirit, soul; thoughts, ideas / attention, mind, interest / heart, feelings, emotion, emotional state / wholeheartedness, sincerity, true heart

A substance with mystical properties, especially one that has an effect on the body, health, or lifespan.

A medicine or drug.

(slang) A medicine or drug, especially a narcotic or other recreational drug.

medicine

use one thing for many purposes / work someone hard

to use one's head

refrigerant, often that in an ice pack

love potion; aphrodisiac

(literary) they (about women or girls)