Trying to create link in post text to sidebar widget

Hello everyone,

Years ago…this was a simple thing to do. Now…cannot find how to make the connection. Please help!!

Am trying to create a simple link from text in my post, “subscription”, creating a link to a sidebar widget (Newsletter).

How can I do this the best way?

Thank you so much for any suggestions or direction to information on how to accomplish this.

-K

The page I need help with: [log in to see the link]