Full Idea
When Dasein directs itself towards something and grasps it, it does not somehow first get out of an inner sphere in which it has been proximally encapsulated, but its primary kind of Being is such that it is always 'outside' alongside entities.
Gist of Idea
When Dasein grasps something it exists externally alongside the thing
Source
Martin Heidegger (Being and Time [1927], I.2.13)
Book Reference
Heidegger,Martin: 'Being and Time' [Blackwell 1962], p.89
A Reaction
This is the first plausible fruit of phenomenology I have been able to discover. Analysing the passive mind is not very promising, but seeing what happens when we become more proactive is revealing.