Can't build a entity request

Questions
1

Hi There,

This is my scema of site

Site
  Parent1
    LandingPage
    Collection1
      meta1
      meta2
    Collection2
      meta6
      meta7
  Parent2
    LandingPage
    Collection1
       meta3
       meta4
       meta5
    Collection2
      meta8
      meta9

So, i need get "meta"s on LandingPage for appropriate Parent.
I’ve get meta from Collection1 as

CurrentPage.AncestorsOrSelf(2)[0].FirstChild("Collection").FirstChild("Collection").Children("Meta").Where("Visible");

Currently, I’m not understand how I can get meta from Collection2, Collection3 and etc.

Have any ideas? May be I can do it with names of collection?

This is a companion discussion topic for the original entry at https://our.umbraco.com/forum/74521-cant-build-a-entity-request