Lyric discussion by _biggreenmonkey_ 

'I was alone, falling free Trying my best not to forget What happened to us, what happened to me What happened as I let it slip.'

I think this is the psych patient going off their drugs. This person doesn't want their sanity to slip, so they keep the thoughts of their friends and family and how much hurt they've caused close to them, to try to help keep them sane.

'I was confused by the powers that be Forgetting names and faces Passers by were looking at me As if they could erase it.'

I think 'powers that be' refers to the drugs this person was on, and 'forgetting' was a side effect of the drugs. The people passing by seem to notice this person's angst, and they feel pity for them.

'Baby, did you forget to take your meds?'

This is the person's friend or lover or family member, noticing the odd behaviour, and starting to wonder.

'I was alone staring over the ledge Trying my best not to forget All manner of joy, all manner of glee And our one heroic pledge.'

The person is slipping back into their old behaviours- doing risky things, even though they don't really want to. So this person tries to remember making the promise to stay sane and become 'normal' once again.

'How it mattered to us, how it mattered to me And the consequences I was confused by the birds and the bees Forgetting if I meant it.'

The person starts off thinking these moments and promises are so important to them, but then is distracted by 'the birds and the bees', which I think means they're hallucinating again. When this starts to set in, the person 'realizes' that they never meant to stay sane, that meds are the enemy and they need to return to their dillusions.

'Baby, did you forget to take your meds?'

This time, the words take on a more urgent tone as the people around the patient see the odd dangerous behaviours.

'And the sex, and the drugs, and the complications.'

The person slips into doing all of these things because of their mental illness.

'Baby, did you forget to take your meds?'

Finally, the friends and family take action, and try to do something about it.

'I was alone, falling free Trying my best not to forget.'

The person gets back on their meds, and once again waits to go through the cycle again.

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