Syntax to access page type metafield content

Can you share what needs to be done to access metafield whose content type is page.

I am using this:

{{ product.metafields.my_fields.pageref }}

Output I am getting is this:

gid://shopify/OnlineStorePage/91550220472

I want the html page as the output. Directly accessing an existing page works well for me when I use this:

{{ pages.color-guide.content }} where color guide is a page on my website. But I want to access this page through metafield.