set (your) heart on (something/doing something)

to decide to achieve something.

She's set her heart on a big wedding.

• Prevention is better than cure.
• prey on
• prey on mind
• prey on someone
• prey on someone's mind
• prey on something
• prick conscience
• prick ears up
• prick someone's conscience
• prick your ears up
• pride and joy
• Pride comes before a fall.
• pride on
• pride on something
• pride yourself on
• pride yourself on something
• prima donna
• prim and proper
• prime mover
• prime the pump
• primrose path
• Prince Charming
• priori
• prodigal son
• promised land