Doors open, Doors close

When something looks possible/doable to you, that door is open.
When something looks impossible/undoable to you, that door is closed.

Every relation/person is also a door,
That is open or closed to you.
They in-turn open other doors to things,
And/or open doors to other people,
Who then act as doors to more things and people,
And so on…

Doors can open in a cascade, like dominos falling,
And open a whole new vista of experience for you,
And all of it could be from a single door (a person you suddenly made contact with).

The reverse can happen too,
That is, all of your current vast arrays of doors can also start closing up in a rapid cascade.
A bodily problem can do that, it can just shutdown your open doors rapidly in no time.
Similarly a single relation with an difficult person can bring so much destruction,
That most of your doors could close off from that.

A good time in your life is when doors were opening and opening for you,
Keeping fresh enjoyments piling over one another.
A bad time is when doors keep on closing imprisoning you further and further,
Giving you the grief of loss again and again.