spikes?

[orchidz]

Hi there!
As a complete newbie I nearly killed my first orchid.
I took action only after one of the two stems dried up and started watering according to instructions given at the hardware store garden dept. The remaining stem stayed dormant for a year or so but it recently started coming back to life and now I have what is shown in the pic. I would be grateful if someone told me what those are and what I can or am supposed to do with those "spikes"? There are eight of them but they don't seem to progress much at this point...