pointではなくkeyを使う

[名]key: something that is necessary in order to do or achieve somesing.
[形]key: extremely important, essential, crucial
日本語のポイントは英語のpointの「点」にあたる。

Ex

  • Having enthusiasm is a most important key to success.

Reference source

  • https://msdiaryjp.blogspot.com/2016/05/point.html