the environment is a past home, sorta. photos are used to record history,
but your past history isn't recorded here due to the hail. that "coworkers"
are involved (rather than friends or family) is suggesting that your past
work environment history wasn't properly recorded (or perhaps that you're
"working" on that history).
this all ties in with your other recent dream it seems.
pills are like magic cure-alls sometimes, don't ya think?
pop a couple and a headache vanishes -- poof.
the hail might be likened to pills supplied from the heavens...
they've penetrated deeply into your pool/pond.
that pond might correspond to your collected memories,
or your personal emotional reservoir. so, a heavenly
supply of antidote for what ails ya has been delivered.
that you were unable to come up with questions seems an oddity.
wouldn't you just ask about things you were unsure of?
or, maybe ask about things you have confidence about, and
see if your interviewee agrees, or has a different perspective.
this bit seems to indicate that you're feeling unable to take
the lead in the situation at hand, and need to adopt a passive
attitude at that juncture.
a result of the magic pill hailstorm is that some complicated
instrument from your past has been rendered null -- you
don't need to pay for that thing any longer; you're free of that.
the remainder seems to be a confirmation that your past issue
has truly been corrected. you're able to safely rest in the pool.