I'm not very good at English so my translation is going to be bad. 理想は理想のままがいい I want the ideal to remain as an ideal. this means that I still can't make it true. 手の届かないところにあるから輝いて見えるのです If I translate this literally →The ideal looks shining because I can't touch it. I can't touch it = I can never make it come true. That's especially why the ideal looks more attractive. I'm really bad at translating but I hope you understand even for just a bit.