inspiration
US /ˌɪn.spəˈreɪ.ʃən/
UK /ˌɪn.spəˈreɪ.ʃən/

1.
the process of being mentally stimulated to do or feel something, especially to do something creative
:
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His artwork is a great source of inspiration for young artists.
•
She found inspiration for her novel in her travels.
2.
a sudden brilliant or timely idea
:
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He had a sudden inspiration to paint the wall blue.
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The design team is looking for some fresh inspiration.