Ok now we're getting somewhere. When you route a channel somewhere (i.e. select an output destination at the bottom of the channel strip), that is where all the output of that particular channel goes. Everything, or in certain cases almost everything post fader is going to go to what is selected at the bottom on the channel strip. Those certain cases mentioned in the previous sentence would be cases where a aux send is used.
Aux stands for auxiliary which for our purposes here, means 'in addition to'. So an aux send is creating an additional output for the signal. Now some portion of the signal goes out the aux send and some portion ALSO goes out the channel output.
For effects like EQ, I use the effects rack inserts because I want all the signal processed. For effects like reverb or delay, I also use effects rack insert most of the time. This way any output of that channel sounds the same no matter what. This method works perfectly in cases where the reverb/delay/etc is set and never needs to change throughout the song. But sometimes you want the reverb to change. Lets say I want a little bit of reverb on the snare during most of the song but I want a lot of reverb on it during the bridge section.
This is where I'd set up the reverb as an aux send. Create a new audio channel and put my reverb in the effects bin. Then add an aux send to the snare and patch the output of that send to the input of my reverb channel. Now I've got a knob that I can easily automate and I can 'send' a little bit of snare for most of the song, but then turn up the knob and 'send' more snare to the reverb during bridge of the song. Patch the output of the reverb channel (bottom the channel strip) to the same bus as the rest of your drums and everything should be seamless.