I don't know where to start with intervals, I can't find information on them that makes much sense to me since i am new to music... so far, all i know is that intervals have something to do with how different notes relate to eachother, or something like that.
Ive been messing around with scales and want to move onto modes, but i keep hearing that i should understand intervals first.

It would be GREATLY appreciated if someone could link me to a lesson on intervals that a music dummy can understand
thanks in advance