Reach for the stars
Definition 1 of 2
Pro Tip 1/3Metaphor Usage
Understand this phrase is a metaphor for setting and striving toward high goals. 
Despite the challenges, she decided to reach for the stars and become a doctor.
Pro Tip 2/3Inspirational Tone
Use 'reach for the stars' when you want to inspire or motivate yourself or others. 
He knew it wouldn't be easy, but he was determined to reach for the stars.
Pro Tip 3/3Challenging Contexts
Especially apt when discussing ambitions in the face of difficult circumstances. 
Even with limited resources, they told her to reach for the stars.