How to link a title from one view to a page of another view
You are correct.  You can use contextual filters to achieve this.  There are two parts to the solution.  

The first is the views page, which you labeled xxx.com/mypage.  You will need to add a contextual filter using Content:NID.  You would then change your views page's path to uft/%.  Then, for instance, navigating to xxx.com/uft/2 in your browser would result in accessing your views page with only the information for node 2 shown.

The other half of the solution is in the block.  You will first need to add one more field to your block's fields, NID. Make sure to check the 'Exclude from display' checkbox while adding it. Once you've added NID, you'll need to rearrange the fields so NID is above title. Now you are ready to change what the Titles in your block link to.  When you click Content:Title under the Fields section you will first want to uncheck 'Link this field to the original piece of content'. Next, you should see a collapsed fieldset titled 'Rewrite Results'.  Click that to expand it. In the text box, entering uft/[nid] should complete the process.

At this point, your views block should be generating xxx.com/uft/target_nid as the link targets for the titles in the block and when you click them you should arrive at your views page with the selected nid passed as a contextual filter argument.